I just picked up one of these rifles at a good price, to play with. After hearing how much trouble people have with them and their tight chambers I thought it would be a good challenge. I can see what they are talking about - a fired case is .375" inside, and the barrel measures .373"x.380". It can't work with conventional boolit ammo. But that tight chamber and lack of any real throat is just perfect for shooting with black powder and boolits patched to bore diameter! Sooo... I have a box of long Starline brass on the way, and several moulds that make slick sided boolits from .360" to .367" so we shall see what happens soon. I think I may have found a really fun to shoot rifle if it works like I think it will. And not having to resize the brass is really a plus, I could even shoot it schutzen style and just use one case. Or muzzle load it if I felt the need for more powder than will fit in the case. Lots of possibilities here!