What not to use is anything designed as a varmint bullet. In fact, I tried some 100gr ACP bullets (solid-ish copper) at full velocity that I didn't like. Limited sample but they didn't exit and seemed to break up inside. Worked, resulted in a run, and tracking but no blood to follow. They'd probably be fine in more open country than I've been in lately. Reminded me of early Ballistic tips.

Using 120's and RL22 has been so effective I quit trying other stuff.

“You never need fear a man, no matter what his size. When danger threatens, call on me, and I will equalize.”
Samuel Colt.

�Common sense is genius dressed up in work clothes.� - Ralph Waldo Emerson