i to have shot a few squirrels with my 25mn using 40grain hollow points and it will 'mess' them up pretty bad unless you can take head shots.i have never tried using non hollow points yet,but i wonder if they would be a little more 'meat' friendly than the hollow points?i usually use a .22lr for squirrell hunting,even a .22lr with hollow points will damage them pretty bad,but not near as bad a.22 mag.