In rereading this thread, I just realized I should have pointed out that in our long range match at the DoM Muster, you can use jacketed bullets for the long range paper match, but ONLY for that match. I would suggest using jacketed bullets for the four hundred yard "paper" match if you're using a "small bore" rifle, such as the Krag, or a Mauser. Shooting those bullets at the original velocity really helps over that four hundred yard distance. Of course, all the stages that use steel targets require lead bullets, but you can use gas checks. The rifle targets are generally set at a minimum of forty yards out, going out to one hundred fifty, so there's no danger of pieces coming back at the shooter.