Please check local laws before ordering. Please call us at (240) 347-4883 and we will be happy to speak with you! The .257 shoots a 115gr bullet I beleive and most folks shoot an 80gr or so in the .243, so the .257 has a little more meat to the projectile. Can be a great field rifle with 26-28" barrels or all around carry gun with 22-24" barrel. This is a .243 Ruger M77 with a tang safety, red recoil pad, and a Redfield 3x9. If you want to drive a .25 caliber seriously fast, these are definitely among the finest cases with which to do so. This means that the speed and energy will vary from cartridge manufacturer to manufacturer. The .257 is a great round with very minimal recoil, however, the .243 is hard to beat. This is a side story, but he had the rifle for nearly a year and a half and didn't even get started on the project . The light 87grain Hornady SP at 3825fps is intended strictly for varmints while the 100 grain Interlock at 3602fps and 117 grain RNSP Interlock … It was created by necking down the 7×57 Mauser case to the 257 bullet size. 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. GMX ® 81447 3250 2908 2592 2296 2020 1766 2110 1690 1342 1053 816 623 -1 513 0 -6 -197 -414 Someone had finally purchased my 318 Westly. We are more than happy to discuss bullet performance relating to our 257 Roberts ammunition and bullet selection for your rifle. The .25-06 which holds another 8 or 9 grains of powder outperforms the .257 Ackley by about 200fps. This rifle started out as a 25-06 and was re-barreled to .257 Rob. Speed and Energy are figured out using an average of all the known cartridges. Description.257 Roberts. I have a Winchester model 70 Pre64 257 roberts. 257 Roberts rifle ammunition for sale. It shoots 1-inch groups at 100 yards, with about any 100-grain bullet. 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. 6.5x257 Roberts. 25-06 - Best of the .25's IMO for the average hunter for ammo cost and availability. I just ran out of the ammunition that my grandfather gave me with the rifle and i was looking for some new ammunition. 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. 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. Ammunition.257 Roberts.257 Roberts. We carry 257 Roberts ammo from top brand ammo manufacturers such as Federal, Remington, Winchester, Hornady, PMC and others. Origin of the 257 Roberts. SF 257 Roberts +P 117 gr. The 257 Improved is a fi ne performer, adding up to 100 fps velocity over its factory cousin. 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. In addition, Winchester and Hornady still turn out factory ammunition. I found Hornady superformance at my local scheels bout its 257 rob +P. The .257 is the original dual purpose caliber. 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