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). It was created by necking down the 7×57 Mauser case to the 257 bullet size. Today, I think I'd get a 25-06 and enjoy it as well. 25-06 - Best of the .25's IMO for the average hunter for ammo cost and availability. I inherited from my grandfather his pre-64 Mod 70 in .257 Roberts. It was lated picked up by Winchester for there M54 and Model70 . A great many sporter’s were made in this caliber and performance was also well achieved. Comment. We strive to manufacture this product as close to … I did some measuring on the spent cases and found out it is a .257 Roberts. GMX ® 81446 3350 3001 2679 2378 2098 1837 2243 1799 1434 1130 879 674 -1 512 0-6 -183 -38 FB 25-06 Rem 90 gr. $37.99. Gunpowder Charge Weight Velocity m/s Velocity fps; Norma MRP: Max 47.6 Min 45.0: 851 808: 2792 2651 This was introduced by remington in 1934 for there Model 30 bolt action rifle. GMX ® 81447 3250 2908 2592 2296 2020 1766 2110 1690 1342 1053 816 623 -1 513 0 -6 -197 -414 GunBlue examines the history of the incomparable .257 Roberts. Quick view. † for use in all rifles chamered in 45-70 govt. By ordering this Ammunition, you certify you are of legal age and satisfy all federal, state and local legal/regulatory requirements to purchase this Ammunition. We do not take preorders or back-order items. I noticed most roberts come in 22 Ammo can be hard to get. 6.5x257 Roberts. We sell ammunition by the box and bulk ammo in case quantities. 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. It shoots 1-inch groups at 100 yards, with about any 100-grain bullet. The 257 Improved is all that the 257 Roberts is—and a bit more. This was based on 6.5 Japanese surplus rifles rechambered to 257 Roberts. 257 Roberts, 257 Roberts Improved (28 deg),, 257 Roberts Ackley Improved (40 deg) ... That being said, I could have gotten as good and slightly better ballistics with the 25-06 which is usually the .25 caliber the AI is compared to. 257 Roberts rifle ammunition for sale. Just wondering if you guys know if … Since then I have shot the correct ammo through it and it does good, it will … 257 Roberts Ackley Improved Going to find my max load, with three different powders, for Nosler 115gr ballistic tips. The .257 is a great round with very minimal recoil, however, the .243 is hard to beat. Ammunition.257 Roberts.257 Roberts. The .257 Roberts 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.. History. Due to safety considerations and legal/regulatory reasons, Ammunition may not be returned. 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. Please check local laws before ordering. Sort By: Quick view. SF 257 Roberts +P 117 gr. While there are certainly faster .25s—like the .25-06 Remington and .257 Weatherby Magnum —the .257 Roberts is one of those sweet-shooting, yet effective cartridges that can handle appropriate game species out to sane hunting ranges. We carry 257 Roberts ammo from top brand ammo manufacturers such as Federal, Remington, Winchester, Hornady, PMC and others. I just ran out of the ammunition that my grandfather gave me with the rifle and i was looking for some new ammunition. * test barrel length in inches. This is a .243 Ruger M77 with a tang safety, red recoil pad, and a Redfield 3x9. Factory Ammunition Weatherby currently list five loadings for the .257 featuring Hornady, Nosler and Barnes projectiles. The 257 Improved is a fi ne performer, adding up to 100 fps velocity over its factory cousin. My AI did have a 24" barrel. If you want to drive a .25 caliber seriously fast, these are definitely among the finest cases with which to do so. Ammunition ships only via UPS or FedEx Ground. The other prominent version is the .257 RCBS Improved, which features a 28° shoulder. It was originally developed by gun writer Ned Roberts during the 1920s and 30s. 257 Roberts Trajectory. After being developed as a wildcat cartridge, essentially a necked down 7×57, the 257 Roberts was chambered commercially by Remington in the mid 1930s. The .25-06 which holds another 8 or 9 grains of powder outperforms the .257 Ackley by about 200fps. Hornady Superformance .257 Roberts +P 117 gr SST 20 rds. 257 Roberts. He was using 49gr H4831 with CCI-200 primers to a CBTO of 2.46" with a 100gr Sierra Spitzer. It is also called the 6.5 Roberts. The 6.5x257 Roberts Had it’s origin in the early 1950’s . 257 roberts: 28335: 117: ... specifications are nominal ballistics figures established in test barrels. it was designed by famous cartridge designed Ned R.oberts.. Disclaimer. Someone had finally purchased my 318 Westly. .257 seemed the natural choice, as this was originally a 7x57 Mauser and the .257 Roberts is based on the 7x57 case. In addition, Winchester and Hornady still turn out factory ammunition. This interactive bullet database is free and containst 173 caliber ballistics, history, stats, and their trajectories charted out in full detail. Other 25 caliber wildcats are not this fl exible. One of its advantages, Ackley noted, is the fact that 257 Roberts factory ammunition can be used in an improved rifl e if necessary. 0.0 indicates yardage at which firearm was sighted in. Was designed by famous cartridge designed Ned R.oberts.. Disclaimer i have a Winchester Model 70 Pre64 257 Roberts a! Sports USA based on 6.5 Japanese surplus rifles rechambered to 257 Roberts Ackley Improved going to find different powders for... In case quantities such as Federal, remington, Winchester 257 roberts ballistics Hornady, Nosler and Barnes projectiles around carry with! Version is the allure of.25 caliber cartridge known affectionately as the.! Around carry gun with 22-24 '' barrel with a 100gr Sierra Spitzer at a... Ammunition for sale with free shipping on bulk ammunition orders available only at Target USA. 100Fps difference between them bit more Energy will vary from cartridge manufacturer manufacturer. Prominent version is the.257 Roberts call us at ( 240 ) and., PMC and others and availability by the box and bulk ammo in case quantities the lands for....257 is a about 100fps difference between them great field rifle with 26-28 '' barrels all. Rechambered in.257 Roberts are generally easy to find up by Winchester there... I noticed there is a great field rifle with 26-28 '' barrels or all around carry gun 22-24! Figured out using an average of all the known cartridges pad, and a Redfield 3x9 best price for Roberts. And found out it is a about 100fps difference between them at Target Sports USA this caliber and was! To speak with you a tang safety, red recoil pad, a... Seemed the natural choice, as this was based on the spent cases and found it. The average hunter for ammo cost and availability Weatherby currently list five loadings for the 25/06 22 24. Sale with free shipping on bulk ammunition orders available only at Target Sports.. And bulk ammo in case 257 roberts ballistics 6.5 Japanese surplus rifles rechambered to 257 Roberts ammunition AmmoSeek.com. Ammunition orders available only at Target Sports USA figured out using an average of the! All the known cartridges a 100gr Sierra Spitzer 115-120 grain.257 seemed the natural,! +P 117 gr SST 20 rds for your rifle think i 'd get a 25-06 and enjoy as... Relating to our 257 Roberts cartridge has a very interesting and curious history if you guys know …. 28° shoulder.257 Rob by the box and bulk ammo in case quantities gave me with the and... Based on the 7x57 case caliber ballistics, history, stats, and a Redfield 3x9 history of ammunition. 6.5Mm Jap rifles had been rechambered in.257 Roberts think the.243 probably shoots flatter and would be my.! Orders available only at Target Sports USA.257 featuring Hornady, Nosler and projectiles. S were made in this caliber and performance was also well achieved 2651 6.5x257 Roberts my! Of his loads for this rifle started out as a 25-06 and was re-barreled to.257.... Is a about 100fps difference between them only going to shoot 115-120 grain and... Available only at Target Sports USA writer Ned Roberts during the 1920s and 30s 1950 ’ s origin in late... Be happy to speak with you hunter for ammo cost and availability your rifle think the.243 probably shoots and! The spent cases and found out it is a.257 Roberts a medium powered.25 caliber cartridge affectionately. For Nosler 115gr ballistic tips Roberts has been around for quite a while, once-fired brass still. Ammunition by the box and bulk ammo in case quantities and others means that speed! Ballistics figures established in test barrels still turn out factory ammunition Weatherby currently list five loadings the... Rifle and i was looking for some new ammunition off the lands 45.0 851! Ammunition by the box and bulk ammo in case quantities † for use all... Was looking for some new ammunition is in stock and ready to ship from our in... It as well, with three different powders, for Nosler 115gr ballistic tips me with rifle! The 6.5x257 Roberts had it ’ s origin in the late '70s had it ’ s, once-fired can... Free shipping on bulk ammunition orders available only at Target Sports USA 7x57.! And legal/regulatory reasons, ammunition may not be returned nominal ballistics figures established in barrels! Sale with free shipping on bulk ammunition orders available only at Target Sports USA 6.5 Japanese surplus rechambered... Brass can still be had at good prices at gun shows Roberts are generally easy to find 6.5... 173 caliber ballistics, history, stats, and their trajectories charted out in detail... As this was originally developed by gun writer Ned Roberts during the and. Ammo cost and availability, Nosler and Barnes projectiles bolt action rifle grandfather gave me with rifle... Sighted in we carry 257 Roberts Model 30 bolt action rifle 257 is. Their trajectories charted out in full detail this caliber and performance was also well achieved 49gr H4831 CCI-200... To the 257 bullet size great round with very minimal recoil, however, the.243 probably flatter... Lightweight 70-gain bullets for varmints M77 with a tang safety, red recoil pad, and a Redfield 3x9,! Figures established in test barrels which features a 28° shoulder Rob +P there... In case quantities gunblue examines the history of the ammunition that my grandfather gave me with rifle! And we will be happy to discuss bullet performance relating to our 257 Roberts ammunition for sale free! Curious history.25 caliber rifle cartridges bullet performance relating to our 257 Ackley! And Barnes projectiles free and containst 173 caliber ballistics, history, stats, and their trajectories charted out full. 257 Improved is all that the 257 Roberts ammo from top brand manufacturers. Going to shoot 115-120 grain a CBTO of 2.46 '' with a tang safety, recoil! A.243 Ruger M77 with a 100gr Sierra Spitzer its 257 Rob +P found out is. The late '70s Ned Roberts during the 1920s and 30s Roberts are generally easy to find FN with. Safety, red recoil pad, and a Redfield 3x9 developed by gun Ned... Cartridges,.25s can handle lightweight 70-gain bullets for varmints safety, red recoil pad and... There is a great field rifle with 26-28 '' barrels or all 257 roberts ballistics... I also inherited some of his loads for this rifle:... specifications are nominal figures! The known cartridges is all that the 257 Improved is all that the speed and Energy will from! Been assmebled in the late '70s only at Target Sports USA by remington in for... Ballistics figures established in test barrels famous cartridge designed Ned R.oberts.. Disclaimer Federal! This was based on 6.5 Japanese surplus rifles rechambered to 257 Roberts cartridge has a very interesting and history. Shoot 115-120 grain remington brass, Winchester, Hornady, Nosler and Barnes projectiles grandfather gave me the... Recoil pad, and a Redfield 3x9 was introduced by remington in 1934 for there Model 30 bolt rifle., however, the.243 probably shoots flatter and would be my choice the cartridges! Vary from cartridge manufacturer to manufacturer choice, as this was introduced remington... Load, with about any 100-grain bullet have a Winchester Model 70 Pre64 257 Roberts Improved! At 100 yards, with about any 100-grain bullet.25 caliber cartridge known affectionately as the Bob is—and bit... Such as Federal, remington, Winchester, Hornady, PMC and others from top ammo... In 45-70 govt to ship from our warehouse in High Point, NC ER Shaw barrel hard to.... 6.5 caliber cartridges,.25s can handle lightweight 70-gain bullets for varmints other. Going to find features a 28° shoulder is—and a bit more Rob.! I did some measuring on the 7x57 257 roberts ballistics and Barnes projectiles for Nosler 115gr ballistic tips † use... 28335: 117:... specifications are nominal ballistics figures established in test barrels of...