Everyone's been over this before and ran in into the ground. If you want a 45-70 there are lots of manuals and loads that will make your gun shoot from mild to mean but if you want a 700 nitro express, just buy one and don't waste everyones time trying to "take it to the max" in a gun that wasn't designed for it. I have an old Krag that shoots fine with ordinary reloading manul loads. If I wanted a 300 Weatherby Mag I sure wouldn't see if I could stuff a bunch more powder in the Krag and hold it all together with duct tape!

Tired of it in the U.P., Krag