I have one with a 22 inch barrel. Mine uses a 209 primer. I have not used it in a while because I use my MK85. I shot a bunch of animals with it though. I think I bought it new from bass pro several years ago for about 250-260 on sale. Used pyrodex pellets and loose in it and never had a issue with it going off in all kinds of weather. It is a solid shooter but due to the bolt assembly clean up takes a tad bit longer than my MK 85 or a wolverine.