I'm about to purchase some brass, I want to know if it would be better to go with .300 RUM brass and size up the necks or get .375 RUM brass and reduce the necks? /ubbthreads/images/graemlins/confused.gif /ubbthreads/images/graemlins/confused.gif I believe both cases are same L.O.A. Just don't know which the pros/cons of each..