Originally Posted by
Falshooter
Should work just fine. They aren't armor-plated. The most important thing on pigs, is knowing that the anatomy isn't the same as a deer. Pretty much everything behind the shoulder is guts.... Bust a shoulder, and it is game over, real quick.
I'd go with heavier, (more) solid bullets. Soft points instead of hollow points, or hard cast. E.g. 250-300gr. bullets. I've killed hogs with handguns (.45 Colt), and plenty of rifles that were on the lower-power end of the scale (.250 Savage, .257 Roberts, .35 Rem, 6mm Rem, etc.). So your Marlin .44 mag should be just fine, if you avoid light, hollow-point bullets.