Have had and still have a bunch of various 45-70 rifles. Once had 450 alaskan. Currently I've got 45-70 in sharps, ruger no1, Marlin, Browning, and am receiving a Pedersoli 71.

Ok here's the question. If an 45-70 is used with the bullet seated out to the length of an 45-90 would it be basically the same animal. Would there really be any difference?

This in theory could be done in the 1886 and ruger no1 and other single shots.