The “conventional” guns aren’t conventional by any normal definition. I suspect that the air rifles are slightly more accurate than the .22 rifles, because it’s really hard to get perfectly consistent .22 ammunition. I’ve known a few people that did that kind of target shooting–I think they were all Finns?–and holy hell, they’re really particular about controlling for every possible variable.

Trap uses very normal shotguns, aside from being extraordinarily, exquisitely made; the over-under shotguns are works of art.