pops got a new lease this year, which is veryyyy thick with blackberry bushes and I want something to bust on through. i recall hearing something about the bores being weird and needing to shoot cast bullets in them? is this the case? im not lookin for no tack driver i just want something i can go buy factory ammo for. what kind of accuracy are you guys getting with factory ammo through these? have the problems been resolved? thanks!!!