I have a Kentucky long rifle make by Pedersoli. It's a very high quality flinter and I've never had any problems with it. It has a 1:45 twist rate so it shoots short conicals, bal-ets, and round balls just OK. I wish that it had a 1:66 twist barrel for optimal round ball shooting though. I've decided that 1:48 is a compromise that handles a wide variety of projectiles, but none particularly well. I also have a Lyman Great Plains Hunter percussion with a 1:32 fast twist barrel and it is deadly accurate with a wide variety of conicals, but probably not optimal for round balls. Its quality is not quite that of the Pedersoli but I like the rifle better, and it was a lot cheaper (Mid South Shooters Supply). The nice thing about it is that I can buy a drop-in 1:66 barrel for it, which I intend to do soon for round ball shooting. I take the GPH elk hunting in Colorado and use TC 370 gr. mini balls. At 50 yards I can lay Power Belt rounds one on top of the other all day long. I also use 2F Triple 7 powder exclusively. Both rifles are 50 cal.