I ran 525 piledrivers outta my marlin @1755fps w/ rl-7 a good stout but safe load.
If You wanna hot-rod a 45-70 get a Ruger #1, a coupls boxes of beartooth 525 piledrivers, starline brass, cci-250 primers, and some rl-7 and have at it.
When that gets boring have Your smith ream it to 45-90, 45-100, or 45-120.
The 45-120 Sharps will cure all wonderment about hot-roddin the old straight walled 45 cal. cases.
Gunner
