Originally Posted By: ed# 5will this round feed through a standard ar15 mag.?
Ed
Not a 556 no. A standard size box but different follower. The hot rocks magazine is an ASC that allows loading to 2.316 nominal. 100% reliability.
I actually use the 6.5 Grendel mags on all my 6.5's/6.8's and their variants also.
Greg