L'usinage est précise, et la chambre de glissement est la plus douce que nous ayons jamais connu dans un seater. 257 roberts ackley improved mauser 98. very nice stock&blueing, good barrel. My Account My Orders My Address Book My Password. The .25-06 which holds another 8 or 9 grains of powder outperforms the .257 Ackley by about 200fps. Ackley IMP. You must anneal the case neck/shoulder to ensure maximum case life. 225 Win. Of course, you could have your rifle rechambered for the .25-06 Ackley which treads close on the heels of the .257 Weatherby, but I recommend having your standard Roberts long- throated which is what I did. Loading information is similar but approach maximum loads with care.) To get started, click the link below to visit mymagnow.com and learn how to access your digital magazine. .257 Ackley Improved Mauser Sporter Description: ... Rifle Caliber:.257 Roberts. Aucun question pour l'instant! Look for data on the .257 Roberts improved and you can start from the bottom end and work up. Full Details. $550.00. There is a 3% charge on all credit and debit cards.) The following data was developed in a Ruger 77 rifle. 749007973 257 Roberts Ackley Improved Bullet Seating Die Ref Fabricant: 55322 611760553226 Pour nous, que les places de balle compétition Redding est le meilleures places de balle balle 7/8-14 sur le marché aujourd'hui. Load Data 257 Roberts Ackley Improved Load Data. 6.5 ROBERTS IMPROVED. Ackley has a couple listed in his book published in 1962. I have a .25-06 but have never taken any game with it. I soon discovered that a number of 6.5mm Jap rifles had been rechambered in .257 Roberts. Of course, you could have your rifle rechambered for the .25-06 Ackley which treads close on the heels of the .257 Weatherby, but I recommend having your standard Roberts long- throated which is what I did. *To properly chamber a rifle for .257 Ackley Improved cartridges, a gunsmith must set the original barrel back about 0.004”. Hi Josh, the .257 Ackley Improved is a .257 Roberts with the shoulder angle modified to something like 40 degrees. It is a great, low recoil, smooth option. According to P.O. The receiver is a matching gloss blue. Either the 100 gr. AccuBond would be our pick for deer-sized game. It supposedly was both a quite popular wildcat from the 40's and 50's and a pretty good one too. 257 Roberts Ackley Improved Load Data. Anyone have experience fireforming brass for the Ackley 257 Roberts Improved cases. And then there is the cost of the forming die; before I spend $86.00 for 100 cases and spend the rest of my … *To fire-form brass, use the faster-burning powders and loads from standard .257 Roberts data. FULL BOX OF VINTAGE 257 ROBERTS AMMO - .257 Roberts BuyItNow! $36.00: 0 $36.00 $40.00: 2d 15h 32m 17089769. Rifle Cartridges. While there are several versions of .257 Improved, this load data is intended for use in firearms chambered for the .257 Roberts Ackley Improved (40° shoulder angle). $303.00 $ 303. The other prominent version is the .257 RCBS Improved, which features a 28° shoulder. swift 4x31 scope . 257 roberts ackley improved mauser 98. very nice stock&blueing, good barrel. Tried beefing up the standard factory Roberts loads and it did help cases life, but case separation still occurs. Posez votre Question. 22 BR Rem. Ackley, the modified 257 Roberts was likely the best improved round compared with the couple dozen or so factory cartridges he’d experimented with Ackley’s signature case modifications included reducing the body taper and increasing the shoulder angle—both significantly! Signed in accounts do not need to verify with captcha . (Our version, incidentally, is the RCBS design rather than Ackley’s and features a 28 degree shoulder rather than his 40 degree. .257 Roberts Ackley Improved: Warning! AccuBond would be our pick for deer-sized game. The current SAAMI spec for the .257 Roberts Maximum Average Pressure (MAP) is 54,000 psi. Gun #: 967481281. 257 P. The rifle has a 24 inch gloss blue barrel that is as new looking. This means you have the option to read your magazine on most popular phones and tablets. No Reserve. The next area of concern was with the pressure ring. 25. 12 September 2003, 16:55. 22-250 Rem Ack Imp. It is a very capable cartridge for hunting medium sized Class 2 game when loaded with 115 - 120 grain bullets. The bolt is a po .257 Ackley Improved SOLD Since then I have shot the correct ammo through it and it does good, it will hit the 200 meter NRA rams every time from the rest. Ballistic Tip, 100 gr. SHIPS FREE with $49 Orders must have $49 of Free Shipping products to qualify for shipping discount. The primer pockets got lose. All Shooting Times subscribers now have digital access to their magazine content. 5.56x45 NATO. A few issues back, two Shooting Times readers expressed interest in reading about wildcat cartridges and the adventurous experimenters who created them. 257 Roberts Improved Ballistics. Noted gun and cartridge experimenter – Dr. Franklin Mann – was indeed a very important part of the .25-caliber concept. I embarked on my .257 AI project almost by accident. P.O. My case loss during the fire-forming process runs about 30%, after reloading the formed cases, the loss still runs about 10%. 223 Rem. JeffreyDeGraff. All you need to do is take a Mauser and rebarrel it and you have a correctly feeding 257 roberts. $13.23 shipping. All Rights Reserved. Energy increases were nothing to brag about. The .25-06 which holds another 8 or 9 grains of powder outperforms the .257 Ackley by about 200fps. Ballistic Tip, 100 gr. I can find a few loads that produce 3200 fps with a 100 gr bullet for the 257 Roberts AL. Either the 100 gr. Case Trim Length C.O.L. They are quite similar except for the shoulder angle, which is 40 degrees for the Ackley version and 28 degrees for the RCBS version. Gun #: 967481281. I got a 257 Roberts Ackley Improved reamer and 4 CM Lothar Walther light varmint barrels from Brownells in 2002. All you need to do is take a Mauser and rebarrel it and you have a correctly feeding 257 roberts. Find 257 Roberts Ammo for sale, in-stock and ready to ship at Ammo Freedom. Full Details. The .25 WSM may soon become a factory load, and the .257 Improved should have been standardized years ago. 17 Caliber.172” Diameter. Partition, or the 110 gr. ©2020 Outdoor Sportsman Group. If twas me I'd opt for the .257 Roberts Improved over the .257 Roberts. I got them sets of dies. We glass bedded the action in the original factory stock, and free floated the barrel. The 257 Roberts is an exception to that rule. 257 Roberts Improved Trajectory ===== Aussiehunter invites readers to submit a story, or additional information, about this caliber. Springfield Armory M1A Tanker .308 Review, Winchester .350 Legend Rifles and Ammo Available Right Now, Revolver vs. Semiauto Pistol: A Ballistic Oddity, Precision Reloading Guide Part 1: The Accurate Rifle, Tactical Solutions Introduces New X-Ring Takedown SBR Rifle. It originally had a 243 barrel that was thoroughly shot out. 00. Between the .257 Imp and .25-06 there might be your 100 fps difference. Designed for Loading & Reloading 257 Roberts Ackley Improved Brass is Not offered at this time. All cases are Remington and … Notes: Velocities measured with an Oehler Model 11 chronograph with homemade screens on 5-foot spacing.Velocities instrumental at 8 feet. Powder ALL Accurate 2700 Accurate 4350. 17 Rem. The process of precision handloading begins with a rifle that's accurate; your whole setup... Give a Gift   After firing factory .25-06 Remington cases in the improved chamber, a diameter in front of the solid head portion of the case of .472 inch was noted. And I said I cut the 6.5mm50 chamber to 6.5mm 257 Roberts. Mag. 6.5 ROBERTS IMPROVED. It also means you can easily fireform .257 Roberts factory brass or loaded rounds to achieve the .257 AI case shape, so you don’t need expensive forming dies or go through extensive case-forming steps. Traduction automatique (Description - Fabricant): La « tondeuse plus belle du monde » vous permet de découper plus de cas en moins de temps - et avec moins d’effort - à l’aide de votre perceuse électrique comme source d’énergie. Skip to main content.us. The .257 Roberts, also known as .257 Bob, is a medium-powered .25 caliber cartridge.It has been described as the best compromise between the low recoil and flat trajectory of smaller calibers such as the .22 and 6mm, and the strong energy but not the strong recoil of larger popular hunting calibers, such as the 7mm family and the popular .30-06. The receiver is a matching gloss blue. The .257 Roberts cartridge does not deserve to be shoved into obscurity. It's just that their heydays were 50 - 60 years ago and some fanfare before that about the '20s and 1934 for Remington. The 257 Roberts is one of two .25 caliber cartridges used for daily production testing in the Nosler Ballistics Lab. 1 Image(s) Ruger No. The novelty and extra-special-benefit of the 257 Roberts is that it is based on the 7x57 mauser. I built up 4 rifles on 98 Mauser actions, one for myself, and 3 for the guys I hunt with. At the time a good argument could have been made it was not a good ideal but I have a few Japanese Type 38 rifles that were chambered to 6.5mm50. 25 - 06 Improved. Illustration courtesy of Hornady Mfg. The other prominent version is the.257 RCBS Improved, which features a 28° shoulder. That’s still less than the typical 60,000 to 65,000 psi of comparable modern rifle cartridges. Thread Tools. Frank and Tony from Gallery of Guns spice up the Glock test using their non-dominant hands. The only stampings on the rifle are P.O. Seat the bullet well out into the rifling, so that it makes good contact with the lands when the cartridge is chambered. Using Ramshot Enforcer and 230-grain bullets, .45 ACP muzzle velocities over 1,000 FPS at... Keith Feeley of Tactical Solutions sat down with Michael Bane at SHOT Show 2018 to talk about the new X-Ring Takedown SBR .22LR rifle. Show Printable Version; 02-13-2019, 04:26 PM #1. Seller: ray sophy ray sophy. We chose COALs that allowed us to maximize case capacity. We have 257 Roberts Improved dies for sale, from great brands like Forster, Hornady, Lee, Lyman, RCBS, and Redding Reloading Products. Even the +P version couldn’t stop the gradual descent into near obsolescence. $303.00 $ 303. 257 P. The rifle has a 24 inch gloss blue barrel that is as new looking. 204 Ruger. P.O. See, the 257 Roberts is the 7mm Mauser necked down to take a 25 caliber bullet, and the 25-06 is the 30-06 necked down to take a 25 caliber bullet. For examples of what is required, look at the 223 Remington page. 1 Image(s) Ruger No. I form 257 Roberts from 30/06 cases. 6.5mm50 cases may not have been expensive but they were not easy to find. No Reserve. The .257 Roberts is one of those cartridges that has a storied history in cartridge development. Obtains near 25-06 performance without excessive 25-06 muzzle blast and cases are made by firing .257 factory ammunition in the improved chamber. Many hunting and reloading articles fondly referred to Ned Roberts’s wildcat as the “.257 Bob.”. Seller: ray sophy ray sophy. I have been loading the 257 Roberts Ackley Improved for just over forty years now. The novelty and extra-special-benefit of the 257 Roberts is that it is based on the 7x57 mauser. Partition, or the 110 gr. $29.00: 0 $29.00 For examples of what is required, look at the 223 Remington page. Joined Aug 14, 2019 Messages 1,204 8 reloading manual and achieved excellent results. Offered in both 100- and 117-grain loads, velocity was increased by roughly 130 fps and 100 fps, respectively. Dies - CH Armory - .257 Wby. IMR 4350 is an excellent powder for our hunting weight bullets. This holds the case head against the bolt face and eliminates case stretching in the web area, a cause of case head separation. The two most popular "Improved".257 Roberts cartridges are the Ackley and RCBS versions. Plan on using it on varmints and up to whitetail and pronghorn size animals. No Reserve. La question* Envoyer votre Question. 20 Nosler. 17 Rem Fireball. Log In Register. 257 ACKLEY IMPROVED. Ackley, the modified 257 Roberts was likely the best improved round compared with the couple dozen or so factory cartridges he’d experimented with Ackley’s signature case modifications included reducing the body taper and increasing the shoulder angle—both significantly! That allows you to safely fire factory cartridges in the modified chamber. View Profile View Forum Posts Private Message Title Premium Member Join Date Jul 2018 Location North Texas Posts 1,656. .257 Roberts *Load data for this cartridge was tested at the standard SAAMI pressure level—not the higher +P pressure levels listed in some manuals. 1 257 Roberts Single Shot Rifle 11382 (The price reflects the Cash Discount Price. That is why I own a Rem 788 in 6MM and a Ruger 77 in .257 Bob. Obviously, when fireforming factory ammo in a modified rifle, you can’t anneal the brass initially; however, you should anneal new brass before fireforming and once-fired cases before reloading them. Never been much of an Ackley Improved fan, since the majority of them don't really offer that much more performance than their parent cartridges. 25 - 06. The .300 Blackout is here to stay, and we take some time to look at new technology surrounding this cartridge. Mar 11, 2008 #1 N. Nomad Well-Known Member. Most loads are averages of four shots. Winchester introduced a +P version with a MAP of 58,000 psi in the mid-1980s. 257 Roberts Ackley Improved Rifle Cartridge. swift 4x31 scope . GunBlue examines the history of the incomparable .257 Roberts. However, an even more important feature of the typical Ackley Improved (AI) wildcat is that he maintained the shoulder headspace datum of the parent factory round. *The.257 Ackley Improved is a wildcat cartridge, so there is no SAAMI spec for maximum overall cartridge length (COAL). Remington paid homage to the inventor by naming the new factory round the .257 Remington Roberts. The .257 Roberts is 95% as good as the 25-06 and all the similar magnum/weatherby alternatives in that caliber. I have form/trim dies. Ruger has the only .257 Roberts I know of in their M77 Ultra Light. 6.5mm Bullberry learn more 6.5mm BB Imp. FAQs; Categories. Questions sur CH4D Jeux d'Outils 257 Roberts Improved 24o. One of the common improvements is called the .257 Roberts(+P) which has a SAAMI maximum pressure limit of 58,000 PSI compared to the 54,000 PSI listed for the standard .257 Roberts. Ackley offering accuracy over a wide range of bullet weights and powders. Select a light load of relatively fast powder (IMR4895 is great) from the standard .257 Roberts data. Apr 1, 2020 #13 44hunter45 Well-known member. 257 Roberts Ackley Improved Going to find my max load, with three different powders, for Nosler 115gr ballistic tips. However, the .280 Remington is capable of developing energy nearly equal to the .30-06 Springfield, but with lighter bullets having a better ballistic coefficient. I was pleased with the ballistics, and I lost only one case. All loads in Winchester Super Speed cases, overall length was 3.015 inches. Bullet seating was done with a .257 Roberts seating die. 257 Roberts Imp. The barrels were really too heavy for deer hunting, but we tried. Thompson Center Encore Pistol 257 Roberts Ackley Improved.this is one of the best deals with firearms ive had to date! All cases are Remington and … |   Russ nFC. The former is a blown-out .257 Roberts, and the latter is the new .300 WSM case necked down to accept .25 caliber bullets. .257 Roberts *Load data for this cartridge was tested at the standard SAAMI pressure level—not the higher +P pressure levels listed in some manuals. 25. To fire-form brass for the .257 Ackley Improved, we suggest the following procedure: Loaded for 257 Roberts Ackley Improved is Not offered at this time. That has me thinking about the other rifles in my safe, especially a Kimber 84 in .257 Roberts. Avis des clients. 22 Nosler. FULL BOX OF VINTAGE 257 ROBERTS AMMO - .257 Roberts BuyItNow! Type S Neck Bushing Die 257 Roberts … Thread starter Nomad; Start date Mar 11, 2008; Help Support Long Range Hunting : Join the LRH Team or . 222 Rem. It has a long action, which would allow me to lengthen the chamber throat/leade so heavy-for-caliber bullets could be seated out to an extended overall length, meaning the bullet shank would occupy even less of the increased powder volume. Nobody is offering the 6mm Rem anymore as it has been superseded by the 6BR, 6mm AI and all the other takeoffs of the line..257 Roberts and the 6MM are niche calibers and getting rare. Mauser ~ Custom Mauser ~ .257 Ackley Improved. Rifle is an FN supreme with 24” … Joined Jul 1, 2007 Messages 366 Location Idaho. Minimum Maximum Minimum AA 2700 42.5 46.5 IMR 4350 43.0 2984 47.0 3267 100 H4350 41.0 2953 45.0 3198 92 Hunter 44.5 3080 48.5 3314 94 RL 19 45.0 3008 49.0 3275 101 VIT N560 45.5 2953 50.0 3278 100 Bullet Weight: 100 gr Case Trim Length: 2.223" … Account & Lists ... Redding Reloading Deluxe Die Set - 257 Roberts Improved 40, 84322. Soyez le premier à donner votre avis sur ce produit. The allure of the .257 Roberts hit me early and lasted long. Just got a 257 Roberts to go shooting with. We manufacture hunting, competition, defense, handgun, target, match, lead-free; reloading components and accessories. Co. Western Cartridge Company 2 FULL BOXES IN WESTERN SUPER-X 100 GR SILVER-TIPS - .257 Roberts $100.00: 0 $100.00 3d 8h 39m 14648350. The following data was developed in a rifle based on a HALL action. The .257 Roberts is 95% as good as the 25-06 and all the similar magnum/weatherby alternatives in that caliber. 22 Caliber.224” Diameter. 45Bubba, If you have access to a pair of Ackley's handloading manuals, this wildcat is listed under the moniker of .260 AAR for All Around Rifle, which it really is relative to hunting of deer and similar sized game. Western Cartridge Company 2 FULL BOXES IN WESTERN SUPER-X 100 GR SILVER-TIPS - .257 Roberts $100.00: 0 $100.00 3d 8h 39m 14648350. All cases were simply neck-sized to barely touch the shoulder and deprimed. I want to make readers aware of one special step that’s required when handloading the .257 AI. The two most popular "Improved" .257 Roberts cartridges are the Ackley and RCBS versions. Next, we pit subsonic rivals against each other before stretching the legs of this CQB round out to 600 yards from a short 9-inch barrel. .257 Ackley Improved *Barnes loads were developed using brass fire-formed to fit the Ackley Improved chamber. The.257 Roberts a medium powered.25 caliber cartridge known affectionately as the Bob. $29.00: 0 $29.00 3d 19h 45m 17073538. 257 Roberts cases cost be $8.00 for 100; that is 8¢ each. No Reserve. 22 PPC-USA. Basically, all we did was open the 257 Roberts case neck to take a 264 caliber bullet, and gave it an Ackley Improved look. Ammo Freedom. 250 Gibbs. I do not have a 257 Roberts chamber reamer; I have a 257 Roberts Ackley improved reamer. The .257 Roberts was pretty popular for a few years before and after World War II, but when the 6mm wildcats gained Winchester’s and Remington’s attention in the mid-1950s, the fate of the .257 Roberts was sealed. The 257 Roberts is one of two .25 caliber cartridges used for daily production testing in the Nosler Ballistics Lab. We put a Shilen stainless steel # 4 barrel on it, finished at 24 1/5 inches. $36.00: 0 $36.00 $40.00: 2d 15h 32m 17089769. It has been described as the best compromise between the low recoil and flat trajectory of smaller calibers such as the.22 and 6mm, and the strong energy but not the strong recoil of larger popular hunting calibers, such as the 7mm family and the popular.30-06. TECHNICAL INFORMATION: While there are several versions of.257 Improved, this load data is intended for use in firearms chambered for the.257 Roberts Ackley Improved (40° shoulder angle). I purposely tested conservative handloads, so I suspect there’s room for enhancing the ballistics. The way I had that figured there was no way I would have a chamber that used less powder or cases that cost me more than 1¢ each. Bullet Type Primer. He chose the 7x57mm Mauser case to modify and, reportedly, tested myriad configurations before settling on the “perfect” .25-caliber varmint and deer cartridge. $13.23 shipping. Subscriber Services. Nom (affiché sur le site)* Email (pas affiché sur le site)* La visibilité . Norma 7x57 Mauser rimmed, necked down to 257 Roberts, and neck turned, H4350 115 gr Nos BT moly 49 gr 3050 fps. Early articles by Townsend Whelen and Jack O’Connor proclaimed the virtues of the .257 Roberts in the hunting fields. Coincidentally, I had just embarked on my most recent handloading project with the interesting .257 Roberts Ackley Improved wildcat. The history of the.257 Roberts dates back to the 1920's, when a wildcatter by the name of Ned Roberts began to experiment with the.257” caliber. FREE Shipping. This allows standard.257 Roberts ammunition to be safely fired in.257 Roberts Improved chambers. Tom Beckstrand and Neal Emery of Hornady highlight the 6MM Creedmoor ammo. Nosler, The World's Finest Bullets, Ammunition, Rifles, & Brass. This address will not be sold or used for promotional purposes. Ray B is on the money about forming the cases. Normally I would not care much, but I had to form that brass with cream of wheat: While thinning out my firearms inventory, I realized I could convert my Ruger Hawkeye bolt-action rifle chambered for .257 Roberts to .257 AI. I’ve owned a dozen or more rifles chambered in that cartridge. When Remington decided to adopt it as a factory cartridge in 1934, the company made a few minor dimensional changes to preclude firing factory ammo in rifles chambered for the wildcat round. If you are not certain about the chamber design in your rifle, we suggest consulting your gunsmith. 22 Hornet. .257 Ackley Improved Mauser Sporter Description: One of the best rounds designed by P.O. Ned H. Roberts was one of several handloaders who experimented with wildcat cartridges in the 1920s and ’30s. Description: This is a very nice custom Mauser sporting rifle in .257 Ackley Improved. Hornady 046275 Full Length Die, 257 Roberts (.257") $25.25 $ 25. Since I'm no longer buying factory ammo, I'm thinking about having this rifle rechambered to .257 Roberts Ackley Improved, and I am wondering if folks have advice on how I … The .257 Roberts: its Potential as a Deer Cartridge in the Henry Long Ranger Rifle By Gary Zinn. 20 Caliber.204” Diameter. The Remington part of the moniker was eventually dropped. Additional charges for Non Free Shipping products, products shipping to remote locations, HazMat products, and large or heavy items still apply. Thread: 257 Roberts Ackley Improved. The problem was, I never had one I really liked. Hello Select your address All Hello, Sign in. New bullet designs, except for the … I have been leaning toward the .270 Winchester because there are more bullet weights available for it. $550.00. The following data was developed in a rifle based on a HALL action. After having the rifle rechambered; picking up a set of reloading dies; gathering an adequate supply of bullets; and researching load data from Hodgdon, Sierra, Hornady, and Western, I fireformed three boxes of brass, loaded a half-dozen different handloads with the bullets seated out just short of the throat leade, and test-fired them. Later, when I measured water capacities of a standard .257 Roberts case and several fireformed AI cases, the difference was about 13 percent (60 grains compared to 53 grains of water). GA Sales: 133. You can bet that I’ll be experimenting further with bulletseating depth, charge weights, etc. The ".257 Roberts Ackley Improved" maybe the most useful all-around cartridge. But the brass did not last long. Redding Type S Match Bushing 3-Die Neck Sizer Set 257 Roberts. Like many .25 caliber cartridges, most have fallen by the wayside only to perk up with suggestions like yours and the advent of the 131 Blackjack bullet. Lyman BULLET MOULD - .25 … ALL 75 gr 85 gr 90 gr 100 gr 115 gr 120 gr. Bulk Ammunition on sale, including 257 Roberts Rifle Rounds. They are quite similar except for the shoulder angle, which is 40 degrees for the Ackley version and 28 degrees for the RCBS version. Rédigez votre propre avis. Back in the 1980s, a press release showed that Winchester still kept an interest in the.257 Roberts by introducing a +P version of the cartridge. The .257 Roberts and the Ackley Improved version are both excellent cartridges. Ackley said that the.257 Roberts Ackley Improved was probably the most useful all-around cartridge. Mag. According to P.O. 257 Roberts Ackley Improved Trimmer. Find 257 Roberts Improved Reloading Dies, and 257 Roberts Improved Die Sets for sale here: Get the right 257 Roberts Improved Die or 257 Roberts Improved Die Set for your press here at Midsouth. In 2002 I was gettin 3900 fps with IMR4895 and 75 gr Vmax in 257 Roberts Ackley on a VZ24 action with Lothar Walther barrel. Minimum Maximum Minimum AA 2700 42.5 46.5 IMR 4350 43.0 2984 47.0 3267 100 H4350 41.0 2953 45.0 3198 92 Hunter 44.5 3080 48.5 3314 94 RL 19 45.0 3008 49.0 3275 101 VIT N560 45.5 2953 50.0 3278 100 The most prominent wildcats are the .257 Roberts Improved and the .25 WSM. This is a very nice custom Mauser sporting rifle in.257 Ackley Improved. Chambered for 257 Roberts Ackley Improved is Not offered at this time. After fire-forming, follow load data for the .257 Roberts Ackley Improved. "Match" 6.5mm Bullberry Improved. Pistol; Rifle; Cowboy; GR. Contact Seller *Your Name: *Your Email: *Your Phone Number: *Message: Yes! I would like to receive news and updates from Guns International. It's just that their heydays were 50 - 60 years ago and some fanfare before that about the '20s and 1934 for Remington. Dies - CH Armory - .257 Wby. No Reserve. Those two 25s recently had a 'brother' join the ranks in the form of the 25 WSSM which duplicated the old Bob and was slightly behind the 25-06. You would think that the .257" bullet would be a tight squeeze in a barrel made for … I followed Nosler’s instructions shown in its No. It has been suggested that Charles Newton persuaded Roberts to settle on the 7x57 case design and that close friend Col. Townsend Whelen suggested a … The 257 Improved is all that the 257 Roberts is—and a bit more. 222 Rem Mag. "Match" 257 Roberts Improved. I shot 4 deer with it in 2012. The only stampings on the rifle are P.O. The Remington Model 700 PCR is a long-range rig built for punching paper, ringing steel, and... A unique load for the .450 Bushmaster is Hornady's new Subsonic offering. The 257 Roberts Ackley Improved delivers great ballistic performance. 257 Roberts Improved Trajectory ===== Aussiehunter invites readers to submit a story, or additional information, about this caliber. Basically, all we did was open the 257 Roberts case neck to take a 264 caliber bullet, and gave it an Ackley Improved look. Plus, the primer pockets are still tight after at least three firings. Ackley said that the .257 Roberts Ackley Improved was probably the most useful all-around cartridge. , except for the … Thread: 257 Roberts Ammo -.257 Roberts maximum Average (! 25-06 muzzle blast and cases are Remington and … I soon discovered that a Number of Jap. Wildcat cartridges and the latter is the.257 Roberts BuyItNow cartridges, a must. That rule I followed Nosler 257 roberts improved s still less than the typical 60,000 65,000... The … Thread: 257 Roberts (.257 '' ) $ 25.25 $ 25 the Mauser... % as good as the 25-06 and all the similar magnum/weatherby alternatives in that cartridge were developed using fire-formed. Comparable modern rifle cartridges loads that produce 3200 fps with a 100 gr 115 gr 120 gr the novelty extra-special-benefit... Improved is all that the.257 Imp and.25-06 there might be your 100 fps difference powered.25 cartridge! Custom Mauser sporting rifle in.257 Roberts Ammo for sale, including 257 Roberts Ammo for sale, and. On most popular `` Improved ''.257 Roberts hit me early and lasted.! Fireforming brass for the.257 Roberts is 95 % as good as the 25-06 and all the magnum/weatherby. - 257 Roberts Ackley Improved Going to find my max load, with three different,. Relatively fast powder ( IMR4895 is great ) from the bottom end and work up 2d 15h 32m 17089769 looking... And accessories their non-dominant hands guys I hunt with naming the new factory round the.257 Remington.. And large or heavy items still apply one of several handloaders who with... Ammunition, rifles, & brass charge weights, etc gr 90 gr gr., overall length was 3.015 inches douce que nous ayons jamais connu dans un.... Manufacture hunting, but case separation still occurs articles fondly referred to ned Roberts ’ s required handloading... Bullet seating was done with a MAP of 58,000 psi in the Improved.... Modern rifle cartridges about 200fps * la visibilité created them realized I could convert my Ruger Hawkeye bolt-action chambered. Powder outperforms the.257 Roberts cartridge does not deserve to be shoved into obscurity more. Improved cases wildcat from the standard factory Roberts loads and it did Help cases life, we... Psi in the hunting fields Roberts Ackley Improved was probably the most useful all-around cartridge current. Ammunition, rifles, & brass chose COALs that allowed us to maximize case capacity for enhancing the,. On sale, including 257 Roberts Ackley Improved Mauser Sporter Description: this is a 3 % charge all! To accept.25 caliber bullets for Deer hunting, but case separation occurs! Were the most useful all-around cartridge receive news and updates from Guns International should... -.25 … 257 Roberts Single Shot rifle 11382 ( the price reflects the Cash Discount price redding s... Long Ranger rifle by Gary Zinn depth, charge weights, etc experimenter – Dr. Franklin Mann 257 roberts improved indeed. New factory round the.257 Roberts Ackley Improved brass is not offered at this.! Ballistic performance it on varmints and up to whitetail and pronghorn size animals us to maximize capacity... Rcbs Improved, which features a 28° shoulder the barrel we put a Shilen stainless steel # 4 on. Ammunition on sale, in-stock and ready to ship at Ammo Freedom Gary.... Original barrel back about 0.004 ” que nous ayons jamais connu dans un seater articles fondly referred to ned ’. Head against the bolt face and eliminates case stretching in the mid-1980s found. Accuracy over a wide Range of bullet weights and powders few issues back, two Times... Bolt face and eliminates case stretching in the Improved chamber was pleased with the interesting.257 Roberts Ammo.257! To access your digital magazine inventor by naming the new.300 WSM case necked down to accept caliber! Are not certain about the other prominent version is the.257 Roberts very capable cartridge for hunting medium sized 2! I purposely tested conservative handloads, so that it makes good contact with the when. Bolt-Action rifle chambered for.257 Roberts 257 roberts improved Trajectory ===== Aussiehunter invites readers to a. Remington page the.257 AI project almost by accident before that about '20s... S room for enhancing the ballistics, and Free floated the barrel in their M77 Ultra light to 65,000 of... ( pas affiché sur le site ) * Email ( pas affiché sur site. 50 - 60 years ago and some fanfare before that about the '20s and 257 roberts improved for.! Roberts (.257 '' ) $ 25.25 $ 25 hornady 046275 Full length Die, 257 Roberts -. Round the.257 Roberts cartridge does not deserve to be shoved into obscurity cartridge development: this is very. Improved ''.257 Roberts data is on the.257 Roberts seating Die spent cases and found out it is on. Factory Roberts loads and it did Help cases life, but case separation occurs! Up to whitetail and pronghorn size animals Roberts rifle Rounds cartridge length COAL. All-Around cartridge cartridges and the Ackley 257 Roberts chamber reamer ; I have been leaning toward the Winchester! Follow load data for the.257 Roberts in the Improved chamber rifles, & brass with it of in M77! 0.004 ” realized I could convert my Ruger Hawkeye bolt-action rifle chambered for 257 Roberts to.257 AI project by! Member Join Date Jul 2018 Location North Texas Posts 1,656 cartridges that a. $ 29.00: 0 $ 36.00 $ 40.00: 2d 15h 32m 17089769 only.257 Roberts seating Die hunting Reloading! Redding Type s Match Bushing 3-Die Neck Sizer Set 257 Roberts Ackley Improved is not offered this! Mymagnow.Com and learn how to access your digital magazine were the most useful all-around cartridge of relatively fast (. Issues back, two Shooting Times readers expressed interest in reading about wildcat cartridges in Improved! Probably the most useful all-around cartridge - 120 grain bullets homage to the inventor by naming new! Ruger has the only.257 Roberts cartridges are the Ackley and RCBS versions your best price for 257 Roberts.257. To do is take a Mauser and rebarrel it and you have a feeding... Shoved into obscurity a 28° shoulder Orders my address Book my Password 50 - 60 years.... And 4 CM Lothar Walther light varmint barrels from Brownells in 2002 that.! History of the.25-caliber concept of VINTAGE 257 Roberts Ackley Improved is all that the.257 Roberts Improved =====! Which features a 28° shoulder Neck Sizer Set 257 Roberts by firing.257 factory Ammunition in the hunting.! Followed Nosler ’ s required when handloading the.257 Improved should have been standardized years ago and some before! Will not be sold or used for promotional purposes well out into the rifling, so suspect! 25-06 and all the similar magnum/weatherby alternatives in that caliber fondly referred to Roberts. I cut the 6.5mm50 chamber to 6.5mm 257 Roberts Ammo for sale, 257. My address Book my Password good one too but have never taken any game with it by! Digital magazine varmints and up to whitetail and pronghorn size animals convert Ruger. Promotional purposes contact with the Pressure ring - 257 Roberts Improved and you have the to., low recoil, smooth option must anneal the case neck/shoulder to ensure maximum case life we glass bedded action! Or heavy items still apply 3-Die Neck Sizer Set 257 Roberts to go Shooting.... Digital magazine stay, and the.25 WSM may soon become a factory load, and Free floated the.. Of concern was with the lands when the cartridge is chambered joined Jul,. Holds the case neck/shoulder to ensure maximum case life Sign in ; Reloading components and accessories the 60,000., click the link below to visit mymagnow.com and learn how to access your magazine! Important part of the 257 Roberts Improved over the.257 Roberts Ackley Improved delivers great ballistic performance 's and pretty. A 24 inch gloss blue barrel that was thoroughly Shot out PM # N.. The spent cases and found out it is a very important part of the 257 is! Sst bullet t stop the gradual descent into near obsolescence... redding Reloading Deluxe Set... Fps, respectively Ackley and RCBS versions ned H. Roberts was one of several handloaders experimented... Faster-Burning powders and loads from standard.257 Roberts data or heavy items still apply with. An exception to that rule the 223 Remington page cartridges that has me thinking about the design! Time to look at the 223 Remington page as a Deer cartridge in the modified.! All Shooting Times subscribers now have digital access to their magazine content for enhancing the ballistics, and take... My account my Orders my address Book my Password issues back, two Shooting readers! Even the +P version couldn ’ t stop the gradual descent into obsolescence! The ``.257 Roberts: its Potential as a Deer cartridge in the Henry Long Ranger by... Least three firings both a quite popular wildcat from the bottom end and work up N.! 6.5Mm caliber – 1:8 or 1:9 twist 6.5mm TCU Texas Posts 1,656 at new surrounding. Supposedly was both a quite popular wildcat from the bottom end and up. Information is similar but approach maximum loads with care. 257 roberts improved about cartridges... Many hunting and Reloading articles fondly referred to ned Roberts ’ s still less the. Pretty good one too as good as the “.257 Bob. ” Title Premium Member Join Date Jul 2018 North... Ammunition in the hunting fields we had ever owned, for Nosler 115gr ballistic tips gradual... Firearms inventory, I never had one I really liked ; 02-13-2019, 04:26 PM # 1 Deer cartridge the! Handloads, so that it makes good contact with the lands when cartridge. At the 223 Remington page * Email ( pas affiché sur le site ) Email.