[Blazer037]

Second WP barrel to have this problem that has been posted here that I know of. I agree with the tight liner theory. I have a conversion (VQ) that I really like - shot it some more yesterday with great results. But, I would send that WP barrel back. I've done some substantial testing along with some of the other folks here, and if you're getting every case blowing out with the supplied spring and heavy handle, I'm not sure any of the common "heavier" springs are going to do much good. IMHO, they just help do a "fine tune". Hey - I'm one of the biggest fans of the HM2 on this board, and I would not shoot your gun.