A 44 mag carbine, when loaded with hot, heavy, cast ammo will knock the hell out of deer, bear, elk, and moose out to 150 yds.
My ruger deerfield likes 240 gr CorBon JHP, and gets over 2000 fps from the 18 1/2" barell. It is a great 150 yard deer, small black bear round.
The heavy CorBon, Buffalo Bore, and Garrett cast ammo shoots flat enough and hits hard enough to be effective out to 150 yds. Go to these links and check out he ballistics. Very impressive...and remember these are from 4 1"2 barells. Also, read some of the garrett cartride testimonials.
good luck, ths78