i've killed lots of groundhogs with a 270

100grn spitzer hp 59.0gns imr 4831, cci br primers, win brass
110grn horn hp 58.8gns imr 4831
110grn spitzer 49.0 imr 3031
i've also killed a few hundred whitetails with mostly 140grn bullets
130grn sp 55.9grns imr 4831
140grn btsp horn 54.0grn imr 4831
140grn nosl bt 45.9grn imr 4064