Resized some 7.62x39 into 6.5 Grendels. First time. Didn't go too badly for a virgin. Did exactly what I do for other rifle rounds: Dumped about 100 into a 1 gal ziploc, sprayed liberally with Hornady One Shot, agitated a little, then into the sizing die they went. A little more effort than normal 308 or 5.56, but not as much as I expected.
They grew a teeny bit over saami spec (about 0.002") but when I loaded bullets into 2 test cases, they fed and chambered into my AR just fine... unless someone on here starts yelling "DON"T DO IT!!! TRIM OR YOU'LL DIE" I'm going to load 20 and see how they run.
They grew a teeny bit over saami spec (about 0.002") but when I loaded bullets into 2 test cases, they fed and chambered into my AR just fine... unless someone on here starts yelling "DON"T DO IT!!! TRIM OR YOU'LL DIE" I'm going to load 20 and see how they run.