I use MG 124 JHPS, they appear to be pretty well made. I shot about 400 rounds yesterday and the rounds are accurate out to steel silhouettes at 50 yds. Close range, I thought I was seeing some variation, I handed to gun over to a far superior shooter and he showed no accuracy issues with the rounds. When I say variation, I mean that we were shooting small sections of VTAC targets which present a very tiny 1"-1.5" acceptable shot range. Switching over to a small 2" steel plate (hostage taker) that flips from side to side of a steel silhouette revealed no accuracy problems. My main concern with varying OAL is safety, I'm reloading on a dillon 550b. I will continue to see if I can locate the source of inconsistency.