Ok,so you've got all the numbers and it's time to trim the fireformed brass to YOUR chamber,what is the recomended spec to trim the brass while allowing for neck flow in the chamber?Will be loading Lapua and Win. brass in 308-155 Scenar-Varget.Waiting now for a Sinclair chamber plug to arrive to shoot the number and believe I recall around .025 from end of neck to end of chamber.So lets say your chamber measures 2.050,would you then trim to about 2.025?I plan on triming after each firing as I'm one of the 6 guys out there that don't mind the job and actually enjoy case prep.What say you? Old Grumpy Slow Bark