yea right,i have killed elk with 175 grain federal powershocks from my 7mm rem mag. like my dad always said its not what u got its how u use it. i know that the k31 will do damage first hand i took mine out a couple years ago while my 7 mag was getting repaired and shot a nice forked horn using 180 grn norma spbt, from 100 yrds with only open sights droped this fork dead where it stood. When i got up to itits opposite leg was under its head. when i cut it open the heart looked like hamburger