I have a 1894 Marlin and mine likes 240 gr bullets with 20.5-21 grains of 2400. The bullets I've used have been gas check lead cast 240 gr swc and Rainer 240 gr HP. Both shoot very accurate at 75 yds with iron sights for me.
However the 44 I have hunted with is a Ruger 77/44, I know it will handle heavier bullets but I'm still using 180 gr and 240gr for it. The buck I got last season I shot with Hornady 180gr XTP factory ammo (only ammo I could find locally then). I shot the deer broadside at about 60 yards. The 180gr XTP went completely through the entire chest destroyed both lungs and missed the heart. The exit wound was big enough to stick a 12 gauge shell in. He made it 50-60 yards and went down, was easy to track with the trail left behind.
A lot of hunters in our area say the 180 gr bullets are a little light for hog hunting and say 240 gr or heavier is the way to go if hunting wild hogs. Deer are good to go with the 180gr loads in my opinion if you do your part.