I used a 270 as my deer rifle for 25 years, and averaged killing a couple of deer a year with it.....from 15 to 450 yards. I do not believe that there is anything that kills a deer any quicker than a 130 grain bullet out of a 270. I've been using a 6.5 CM for several years now, and prefer it because of the short action and the fact that the recoil is milder than that of a 270. Plus, it kills a deer just as dead.