1. Quite probable, if there actually is more flash, that more powder is still burning as it is exiting the barrel.
2. Usually, the sooting goes away as the pressure is increased. The lower pressure does not adequately seal the case against the chamber wall, allowing gas to escape around the side.
Fred, you're tying faster than I can on this iPhone while watching the Bowl Game..
Last edited by PCJim; 01-09-2012 at 21:03..