My exact experience with a 50 cal muzzle loader, the grean mountian barrel made it from a 5" 100 yard rifle to under a 1" rifle.wapiti25 said:I have used one on my 50cal muzzle loader andit was great. I have looked at their 22 rim fire barrel blank and may order one.
gotcha said:I re-barreled a Ruger 10-22 for a friend w/ a Green mountain stnls. heavy varmint. It shoots quite well. (MUCH better than the orig. factory bbl) Machining & bore condition oozed quality. I wouldn't hesitate to buy another.