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AR-10 Cast!!! - Page 3
OK, Instead of standing on someone elses shoulders, again, I have started load development for the AR-10 in 308 Win. I am using Federal match brass full length sized with a .309 sizing button meant for the 7.62x39. I am using Wincester large rifle primers and unique powder, just for a start point. My first load was 12 gr. Unique with a 2gr. dacron filler. Lyman 311466 160 gr. Seated at 2.575 inches. 5 shots at 30 yards went 1 1/2 inches. Loads would break the bolt over, but not cycle the
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