Thing that limits range on any big bore is trajectory. Have shot a lot of 45/70 and on game they are 100 yard rifles at best. Bullet drop gets them very soon.
Boats
For iron sights, I agree. Not for a scoped .45-70 Ruger No. 1. My son and I have both taken many deer with Ruger .45-70s. A properly sighted in, scoped .45-70 is more than a 100 yard deer/hog rifle. With 300 gr. FNHP bullets at 2100 fps I have found it to be easily a 150 yard gun, and a good, practiced rifleman can extend that a little under the right circumstances.
Just my experience, SRH
