there is a Third Model sitting on my bench. Interesting gun to shoot with plenty of oomph if you want to stoke it up, but the thing really needs a wheels and trails.
If you are a young whippersnapper and feel strong go for it, but a .44 caliber 1860 Army for a finishing shot is plenty big enough.
With one caveat, the game laws in some states forbid carrying a hand gun so if the law allows it do it, otherwise a big NO
Lots of folks had their tickets punched by .44 caliber revolvers during the late unpleasantness 1861-1865 so a small critter like a deer using a slug rather than a ball should do the trick. Check the you-tube video by Bottom Dealing Mike on .44 Army ballistics.
Yr' Obt' Svt'
Bunk