Huntin with a Rossi "92" in 45caliber?
I'd guess the "92" could get the job done of it's deer yer after. Even a 22 long rifle cart can bring a deer down. Point blank and precise shot placement would do it.
Considering the "92" action has got to be stronger than the "73" types(thats why it ,the "73" runs smoother with less muscle) I'd opt for the "92's" fer huntin. In 357 mag or 44 mag or 45 Colt or 454 Cassull. Bullets with the biggest flat metplate will wack it down. I'd say reloadin for any of the cal. just mentioned and going near max. with the heavier bullets would wack a deer down with good shot placement and a range limit where the deer gets hit with no less than 500-600 ft.lbs. energy and hit in the right place. That's a long sentence.
Anywhooo......if you consider the mechanics of the 92's and the 73-66's the 92's will always be the slower but stronger and the 73 types faster and weaker.
Of course the 73 Winchester types with the toggle links can take deer and boar and bear even with blackpowder loads. They proved that with the 44-40 back in the day. Might be a hundred yard gun with less better but......that's alright. Just keep the ft.lbs. at the live target 500-600 at the minimum.
Comparison.....I knew an Hombre that wacked down deer at 140-150 yards with a hot loaded S&W revolver in 357caliber. Some of them big ones too.He was a really good shot with that scope on his gun.