loaded their 450 grain FMJ to 2150 fps in my Miroku 1886 45-90 and took Cape buffs and knocked down an ele with it. It took 450 grain NF and Punch bullets to punch through the ele head though.
Also rolled a running Texas bison with it with a shot through both shoulders.

IMHO- good bullets!

CRS, NRA Benefactor Life Member, Whittington Center, TSRA, DWWC, DRSS
Android Reloading Ballistics App at http://www.xplat.net/