A little help. I’m loading for a .270 Weatherby in a Ruger No.1. Split a case neck to measure cartridge overall length with a bullet inserted and got 3.595 OAL to the tip of a 140 gr. Accubond with the action closed while a factory Weatherby 150gr. load measures 3.265 OAL. I need to know how much free bore to leave and maybe gain a little case capacity.