If you can seat the bullet out pretty far in a 45-70 chamber that would be outstanding. Ive often thought that i wanted a 45-90 but i dont think id be gaining much of anything. Ive already got an 1886 45-70 Extra Lite , 450 Alaskan Extra Lite, and an big old heavy octogon 1886 45-70. I really need to play with seating depth on those 45-70 rifles