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. All of the ammunition listed on our website is in stock and ready to ship from our warehouse in High Point, NC. it was designed by famous cartridge designed Ned R.oberts.. Disclaimer. Since then I have shot the correct ammo through it and it does good, it will … The .257 was designed to run in a bolt gun, and any receiver that was designed for the 7x57mm Mauser will handle the .257 Roberts perfectly. The 257 Roberts cartridge has a very interesting and curious history. I soon discovered that a number of 6.5mm Jap rifles had been rechambered in .257 Roberts. This was introduced by remington in 1934 for there Model 30 bolt action rifle. It is also called the 6.5 Roberts. I did some measuring on the spent cases and found out it is a .257 Roberts. Other 25 caliber wildcats are not this fl exible. We do not take preorders or back-order items. In addition, Winchester and Hornady still turn out factory ammunition. 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. 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 .257 is a great round with very minimal recoil, however, the .243 is hard to beat. I inherited from my grandfather his pre-64 Mod 70 in .257 Roberts. 257 Roberts rifle ammunition for sale. I also inherited some of his loads for this rifle. Must Be 18 years of age to order! Remington brass, Winchester primers, bullets are .006” off the lands. What is the best barrel length for the 25/06 22, 24, 26. This means that the speed and energy will vary from cartridge manufacturer to manufacturer. SF 257 Roberts +P 117 gr. Ammo can be hard to get. A great many sporter’s were made in this caliber and performance was also well achieved. * test barrel length in inches. Gunpowder Charge Weight Velocity m/s Velocity fps; Norma MRP: Max 47.6 Min 45.0: 851 808: 2792 2651 Find your best price for 257 Roberts Ammo | Cheap 257 Roberts Ammunition - AmmoSeek.com Search Engine 2020 The .25s have been American favorites for over a century, dating back to the .25-35 and .25-20 Winchester cartridges; by the time the .250-3000 Savage and .257 Roberts hit the scene, hunters were totally hooked. Can be a great field rifle with 26-28" barrels or all around carry gun with 22-24" barrel. Sort By: Quick view. Please check local laws before ordering. I have a Winchester model 70 Pre64 257 roberts. .257 seemed the natural choice, as this was originally a 7x57 Mauser and the .257 Roberts is based on the 7x57 case. 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. I'm really only going to shoot 115-120 grain. If you want to drive a .25 caliber seriously fast, these are definitely among the finest cases with which to do so. The 257 Improved is all that the 257 Roberts is—and a bit more. 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. It shoots 1-inch groups at 100 yards, with about any 100-grain bullet. This load would have been assmebled in the late '70s. We are more than happy to discuss bullet performance relating to our 257 Roberts ammunition and bullet selection for your rifle. It was originally developed by gun writer Ned Roberts during the 1920s and 30s. 6.5x257 Roberts. Please call us at (240) 347-4883 and we will be happy to speak with you! Someone had finally purchased my 318 Westly. We sell ammunition by the box and bulk ammo in case quantities. The .257 is the original dual purpose caliber. I think the .243 probably shoots flatter and would be my choice. The 257 Improved is a fi ne performer, adding up to 100 fps velocity over its factory cousin. 257 Roberts. Unlike the 6.5 caliber cartridges, .25s can handle lightweight 70-gain bullets for varmints. This was based on 6.5 Japanese surplus rifles rechambered to 257 Roberts. This rifle started out as a 25-06 and was re-barreled to .257 Rob. GunBlue examines the history of the incomparable .257 Roberts. 257 Roberts- Great cartridge in a compact light weight rifle. individual firearm may vary from test barrel results. 257 Roberts RIFLE AMMO 257 Roberts RIFLE Ammunition for Sale. 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 noticed most roberts come in 22 Gunpowder Charge Weight Velocity m/s Velocity fps; Norma MRP: Max 47.6 Min 45.0: 851 808: 2792 2651 Speed and Energy are figured out using an average of all the known cartridges. 257 Roberts Trajectory. Bullet Ballistics & Charts. I found Hornady superformance at my local scheels bout its 257 rob +P. GMX ® 81447 3250 2908 2592 2296 2020 1766 2110 1690 1342 1053 816 623 -1 513 0 -6 -197 -414 I took the rifle down to the gunsmith. 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. Ammunition must ship UPS ground. The light 87grain Hornady SP at 3825fps is intended strictly for varmints while the 100 grain Interlock at 3602fps and 117 grain RNSP Interlock … 257 roberts: 28335: 117: ... specifications are nominal ballistics figures established in test barrels. It was lated picked up by Winchester for there M54 and Model70 . 0.0 indicates yardage at which firearm was sighted in. 257 Roberts ammunition for sale with free shipping on bulk ammunition orders available only at Target Sports USA. My AI did have a 24" barrel. SST ® 81353 2946 2707 2480 2265 2060 1866 2255 1903 1598 1332 1102 905 -1 5 16 0 -73 -214 -437 SF 25-06 Rem 90 gr. The other prominent version is the .257 RCBS Improved, which features a 28° shoulder. Quick view. He was using 49gr H4831 with CCI-200 primers to a CBTO of 2.46" with a 100gr Sierra Spitzer. Rifle is an FN supreme with 24” ER Shaw barrel. Comment. Since the Roberts has been around for quite a while, once-fired brass can still be had at good prices at gun shows. 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. You see, that is the allure of .25 caliber rifle cartridges. Ammunition.257 Roberts.257 Roberts. 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. † for use in all rifles chamered in 45-70 govt. Origin of the 257 Roberts. So Im looking at getting a 257 Roberts or 25/06 I noticed there is a about 100fps difference between them. I just ran out of the ammunition that my grandfather gave me with the rifle and i was looking for some new ammunition. The .257 Roberts a medium powered .25 caliber cartridge known affectionately as the Bob. Ammunition ships only via UPS or FedEx Ground. 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. Description.257 Roberts. .257 has loads for 110 grain bullets from 2800 to 3300 fps, with bullets having a ballistic coefficient (BC) of .39 the .30-06 has loads for 110 grain bullets from 2900 to 3400 fps, with BC of .25 and .29 Since I have actually wrote the code for the ballistics calculator in Gun Log, let me illustrate the significance of the BC..257 Weather Mag $37.99. 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. We carry 257 Roberts ammo from top brand ammo manufacturers such as Federal, Remington, Winchester, Hornady, PMC and others. This interactive bullet database is free and containst 173 caliber ballistics, history, stats, and their trajectories charted out in full detail. 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. Basic components for the .257 Roberts are generally easy to find. One of its advantages, Ackley noted, is the fact that 257 Roberts factory ammunition can be used in an improved rifl e if necessary. Just wondering if you guys know if … We strive to manufacture this product as close to … This is a .243 Ruger M77 with a tang safety, red recoil pad, and a Redfield 3x9. Due to safety considerations and legal/regulatory reasons, Ammunition may not be returned. Factory Ammunition Weatherby currently list five loadings for the .257 featuring Hornady, Nosler and Barnes projectiles. The .25-06 which holds another 8 or 9 grains of powder outperforms the .257 Ackley by about 200fps. It was created by necking down the 7×57 Mauser case to the 257 bullet size. The 6.5x257 Roberts Had it’s origin in the early 1950’s . 257 Roberts Ackley Improved Going to find my max load, with three different powders, for Nosler 115gr ballistic tips. 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 . Hornady Superformance .257 Roberts +P 117 gr SST 20 rds. 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