.45-70 has more load options, and heavier bullets available.
.444 is lighter recoiling, has lighter bullets, and a better trajectory.
I'm a .45-70 shooter myself. I find .45-70 brass much easier to stumble across than .444, and better .458" bullet selection too.
I constantly push my .45-70 to max numbers with 405 cast bullets and have not gotten a single pressure sign in probably 100-150 rounds at max loads. Just don't go over board, and work your loads up carefully. Stick to loads recommended for the Marlin 1895, and you'll be fine.
Get which ever one you can find that fits the budget, and roll with it.
Last edited by GuideGun; 12/19/13.
