I have 2 of them. 1 for my daughter, orig. bbl., drives tacks. 70yds, 70gr ffg goex 250 maxihunter .50cal 1' was cut off stock, with a recoil padbefore I got it a yr ago. It had scope mts and rings (permanent). So I use a barrel flusher kit to clean it. The other I bought this winter,the bbl was severely pitted. Replaced it w/a 21" 1 in 28 twist G.M. bbl. Had to sand the bbl channel to make it fit. Sand a little try it, sand and try. The left side of the stock was tighter than the right. Haven't shot that one yet though. cayugad & sabotloader gave me help and advice!! Thanks again guys. Good luck when you get one, they are a sweet handling rifle!!!