Haven't been out for a while, coyotes are thick around this part of Montana now. Been using a 17HMR. It may be light, but it kills them, have taken several out to 120 yds. I'd not hesitate to use my '73. 44-40 w/ 3Fg B.P. I only shoot black in that gun anymore. Fine on antelope and deer, certainly would be on coyotes. Maybe you inspired me to try it. The '76 seems like overkill, but if thats what you've got, use it.