I’m working up a load for my Win 92 in 45 Colt using virgin Starline brass, a 292 grain SWC at 1:20, Win Mag pistol primers and pull down WC 820 (H 110). I loaded three different loads of 5 rounds each. Not surprisingly, as the load went up, the groups tightened to where at the last two, I measured 1 1/4” and 1 1/8” respectively. Problem is that the measure was for 4 shots only. All three loads had flyers at 12:00. The lowest charge had a 7” flyer, next highest 2 1/2” and the highest load had a 1 3/4” flyer. I was on sandbags and all shots were called as good. I know three tests don’t make good data, but since all three went to the north side of a good group hints at an ignition issue as opposed to bad bullets that would be circular in their error. I won’t post the loads and will only say they are at the limit of what Linebaugh pressure tested for Black Hawks. I’m thinking the issue rests with the crimp. Any other suggestions?