I'm a bit of a .45/70 fan myself. Have only taken one mule deer doe with Ol' Brutus the Marlin, but the rifle and bullet did a fine job. Started with the Guide Gun, then decided I liked the standard 22" barreled 1895 better.

The little 2.5x Leupold works really well on the Marlin. Lots of eyebrow clearance for the heavy-recoil of stout loads, and it weighs only a few ounces so it doesn't affect the handling of the big bore lever gun.

Not all .45/70 bullets are created equal. All of these were recovered after being slammed into water jugs at 20 yards:
350 gr Swift A-Frame on left, 350 gr Hornady FNSP on the right:

300 gr Remington hollow point:

405 gr Remington FNSP factory load:

I haven't managed to take an elk or bear with it yet - but it seems a natural choice for those critters!

Regards, Guy