I bought a Huntsman 24 inch stainless barrel about a year ago, factory fitted to my .45-70 SB-2 frame. I later put it on an SB-1 frame and it shoots perfectly. I last shot it around June/July and forgot to clean it. I dragged it out dirty, and said what the heck, try it. ...10 perfect shots on an old, old, 209 carrier. I'll clean it tomorrow.......if I can remember.