Yes, 45/70 will work. No one ever said otherwise. What I said is for 60 yard shots the 44 mag is the better choice in my opinion. Ammo is $1.50-$2.00 per round compared to the 45/70 at $2.50-$4.00 if you are limited to off the rack ammo and when you can find it. Recoil for the 45-70 is 30-37ft/lbs depending on ammo (which by most is considered to be somewhat harsh and hard to manage for a new or novice shooter) compared to 9-12 ft/lbs for the 44 and the 44 will kill them just as dead. Since the OP has both guns already the choice to me would be perfectly clear.