22.
Got a rifle model although I got it use on a Buckmark pistol so not to have fool with takeing it down ever range session,a bit of a pain and I hate useing a rod from the muzzle end period.Also thought it would do for some other 22's
Haven't had a problem with the pistol but haven't used it much on it. A real pain to get the pull cord down the barrel of the 15-22 even after jsut a few rounds,impossible from the breech end at least without hingeing it open which if I did that I would use a rod. It wouldn't go through it after around 100 rounds had to run a couple of dry patches down it first then it fell through.
No conplaints on how it cleans a bore,just getting the pull cord through one.Seems to do a decent job cleaning one for a quick clean still not as good a GOOD cleaning session.