Have any of you shot this in a 300blackout? I have read a lot of discussions, but very little on actual data or group sizes either sub or supersonic, or plain base vs. gas checked.
I see several here have purchased the mold, and would like to hear your experience with it. Does the gas check work well with it being below the neck and stay put without coming off? Should I stay with j-words for supersonic, and just order a pb mold for subs.
Thanks,
oldscool