[Unclenick]

Agree it could cause the problem by having less friction with the bullet and letting the primer push the bullet into the throat before the powder start pressure got up where it needs to be. Typical results for the load should be around 830 fps from a tight chamber. That works out to about 350 ft-lbs of muzzle energy which is typical of WWI era .45 ACP hardball and is still typical of commercial hardball today. Current military hardball has, IIRC, a 234 grain bullet loaded to about 400 ft-lbs, so more like 875 fps.