If your rifle likes them, any short HP. I've killed lots of squirrels with them and they're quiet enough not to scare game a mile away.
I just set a new personal record on 9/1/22 of six squirrels {daily bag limit here} in 30 minutes flat shooting Mini Mag LRHP's. My previous record was six in 47 minutes. In both cases all six were killed from the same stand without moving so you'll have to excuse me for not being too terribly worried about quiet ammo.
