I recently picked up some 300 grain .458 diameter Barnes TSX as a way to make a 45-70 usable for a whitetail spot I have that's gone to lead-free ammo. Anybody ever used a mono bullet for BPE? I have a Mortimer 450 3 1/4 w/ 30 inch Damascus barrels that loves 350's in both lead and jacketed bullets. My pressures are low, as I'm pushing about 1650 - 1700 FPS with them as to not stress the metal too much. Just curious if the copper bullets would create enough of a pressure increase to make the experiment worth the bother or not?
Thanks for all the help on the 577/500 No.2, it is greatly appreciated.
