Having blown up a treasured G21, using heavy bullets and fast powder, in .400 Cor-Bon, I believe that Weshootz is correct. I also fired a round that on which the bullet had been setback, exacerbating the pressure problem. While I have no interest in the .40, due to my aversion to bulged cases, the necessity for me to reload if I plan to shoot, I'd definitely recommend slower powders and lighter bullets to .40 reloaders.
------------------
Shoot to kill; they'll stop when they're dead!
|