Just about any 130-180 grain JSP or cast 308 bullet with the right nose profile will kill deer and hogs in a 30-30.

Monos? IF I was going to use my 30-30s for elk or even big black bears, they do make sense. Cast is fine, in my mind, though. I have played with and will load some more of the Barnes 30-30 150gr X bullet. Not sure if they even still make them? Anyway, stuff hit with it at 30-30 speeds act like they were hit at 300WM speeds. It definitely does damage fast.