My .250 Sav. burns more powder than a .25-35 Win, sends bullets out faster, and will wear the throat faster.
My Roberts burns more powder than my .250 Sav, sends bullets out faster, and will wear the throat faster.
The .25-06 burns more powder than my Roberts, sends bullets out faster, and will wear the throat faster.
My .257 Weatherby burns more powder than a.25-06, sends bullets out faster, and will wear the throat faster.
So?????
I'm not clear on why 2 of the 5 are "overbore" when the progression is what you would expect of such things?