I have an old (old) BSA Martini model 12. Had to clean it once it started to misfire every now and then. Cleaned out the firing pin spring trigger assemble. Works fine and has done so for a very long time. No idea the round count, for me several thousand. Before 1984 when I bought it who knows. I would call it bullet proof. The most accurate 22LR (cartridge 220.) I have owned. Had lots of fun winning several competetions against 77/22's etc with 10X plus scopes with the micrometer iron peep sites on the BSA. Not a carry rifle, 11#'s with a 29" barrel but as accurate as I can be. Only issue would be wind, that affects all 22's.