30 Carbine bullet at just over 2,200 fps also showed the same exceptional accuracy. The Sierra 125 SP (0.311″) clocked out at 2,214 fps while the Sierra 110 RN. Two other loads came in with four-shot groups of 1-1/8″. Either one of these would be excellent for hunting smaller game. The two most accurate loads, each placing four shots in 7/8″ at 100 yards, are the Sierra 125 SP (0.308″) over 28.5 grains of H322 for 2,188 fps and the Speer 130 JHP (0.308″) over 27.5 grains clocking out at 2,154 fps. My most accurate loads all came using Hodgdon’s H322 powder. 310-.311 loads were very close to the smaller bullets in accuracy. Generally speaking, the latter bullets shot more accurately with the powder combinations chosen, however some of the. 310-.311 bullets and 12 using the smaller. With this particular test segment, I loaded seven different combinations using. Many of my reloads proved to be more accurate than these, with some cutting the groups in half. These clock out at 2,230 fps and grouped four shots in 1-3/4″ at 100 yards. All my cases are primed with Winchester Standard Large Rifle primers and velocities are measured using the LabRadar.įor a test control load, I went with Winchester White Box 123 FMJ. With this lube there is no danger of contaminating primers. RCBS dies are used for loading with cases first placed on their sides in an aluminum tray and sprayed with Hornady’s wax-based One Shot Case Lube. I do this using a NexPander Tool which is also used to straighten the case mouths on those brass cases going through semi-automatic actions. 310-311 flat-based bullets it helps to bell the case mouth slightly. In the future I will use only the expander designed to be used with 0.308″ bullets. 310-.311 bullets were not a tight enough fit. I used the two different expander balls and found some, but not all. 308 bullets went in the Winchester cases while IMI was the home for. Winchester and IMI brass cases are used, making it easy to keep loads with different diameter bullets separate. No difference in the performance of the two. There is a lot of confusion concerning the latter, I have always said they were the same, and now H4227 is marketed as IMR4227. I saw this is an excellent place to start, and I also added two other Hodgdon’s powders, H4198 and H4227/IMR 4227. My records showed I used 28.5 grains with 123-gr. Up to this point what little reloading I did for the 7.62×39 was accomplished with one of my favorite powders, H322. Since I had bullets on hand in both diameters, I decided to try both of them. I called Ruger to ask them what size barrels they used in their rifles and they told me it was 0.310" on the American Ranch Rifle and 0.311" on the Mini-30. Reloading die sets come with two expander balls for these two sizes of bullets. Most foreign guns are cut for 0.311" bullets while the consensus seems to be American guns and ammunition are tailored for 0.308" bullets. One of the “problems” with the Russian 7.62x39mm cartridge is the fact bullets are not standardized in diameter. I was also pleasantly surprised how accurate it could be. The result is a rifle so easy to shoot, with so little recoil, it’s not far removed from shooting a. It is very easy handling and I added to this feature by fitting its threaded barrel with a Ruger Muzzle Brake. I was sorely tempted when my friend Denis purchased a CZ bolt action 7.62 x 39, however, I didn’t succumb until recently when Ruger came out with the American Ranch Rifle chambered in 7.62x39 and fitted with a sand-colored polymer stock. The solution, of course, was a bolt-action carbine.
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