Free: Contests & Raffles.
Ruger No.1 in 458 win mag then. It'd be just the same as full tilt 45-70 loads in a No.1.
The american love of the 45-70 and the need to compare it to heavy African calibers cracks me up, it will never be in the same league as the heavy stopping rifles. So many people just don't get it, its not the diameter of the bullet, its the energy and velocity that you can get with a bullet of that diameter.
The 45-70, in any configuration, especially a SINGLE shot, will never be a reliable fight stopper. 375'S are super versatile.