I shooting with friends, pen raised pheasant (some are almost wild - been out in the field over 30 days) on a preserve with - 12 Bore 2" shell 7/8 os - 12 bore 2 1/2" shells 1 oz and 28 Bore 2 1/2" 5/8 oz shells. All shells are RST and #6. Guns are all old english guns SxS. It seems to all of us that the 28 bore shells hit harder and kill better. All shells are about the same velocity. Thoughts???