I have one, righthanded, in perc. .32...very accurate, but my bore was very tight...I broke 2 ramrods reloading in the field until an older and much more experienced guy had me run a bronze brush wrapped in fine steel wool up and down over the tight spot..a section of about 6-8"...this was very early in my bp experience, and I'd never heard of lapping...when I first got the gun, I could not re-load after the 2nd shot without swabbing...after the lapping, I could get 5 shots...if I came across a .50 cal one in a shop somewhere, I'd buy it...Hank