[Loyal Sedition]

.50AE also works pretty well, has nearly 45-70 muzzle energy.
Even more from one of the six .50AE Enfield Carbines sold last year.

AMT Auto-mag V would be my handgun of choice, but a bit hard to find now.

[FromTheSidelines]

.50AE also works pretty well, has nearly 45-70 muzzle energy.

The 50AE pushes out around 1600 lb-ft at the muzzle, about half of a decent load for the .45-70. It's not even close in terms of energy.

If you HAVE to have a pistol, go with the S&W 500 - that has something closer to the lower end of a .45-70 - up around 2500 lb-ft of energy. But you still have the same problem as with the 50AE - trying to contain and CONTROL (you have seconds, after all, to get a few hits on target) that much power in your hands.

No thanks - give me a Marlin 1895 with the barrel cut down to 16.5", and 5 rounds of hot-loaded .45-70 with 420 grain hard-cast bullet at 2000 fps, for a solid 3700 lb-ft of energy with enough bullet weight and integrity to punch deep.