04-07-2011, 05:36 AM
TheOTHERmaninblack Wrote:Yep, the Liberty barrels. In going back to the AA site, I noticed that some of their button barrels were also 1:8, so I guess I'm going with the Liberty unless anybody here has better advice?
Will there be an issue using reformed 7.62X39 brass with these barrels, which I'm thinking are using the AA bolt?
Fire formed brass will work fine. The case capacity is a little less, so pressure will be a little higher with the same powder charge as Grendel brass. Since you can't get as much powder in, the top end muzzle velocity may be a little lower.
Since the Grendel is an intermediate cartridge, the mv is on the low side to begin with, so you might want to get as much barrel as is practical for your use. If you are going to tote it around the weight and length become a factor. Also, the balance can get out of whack with a long barrel, so that's a consideration.