Frankly, maxing the 1895 is a mistake. Especially the guide gun.
The best way to do this is (a) believe the load manuals and (b) get your loads pressure tested. Everything else is problematic when dealing with a low pressure cartridge like the 45-70.
Remember, if you want 458WinMag performance - buy one.
Last edited by Frank Ettin; May 6, 2012 at 11:57 PM.
Reason: clean up language