I shot a year and a half old buck this year with my 300 WSM loaded with a 165gr XLC at 3100 fps. I shot it behind the sholder blade and about half way up through both lungs. He didn't bleed much because the hole was not in the bottom third of the deer. He went probably 50 yards and the exit hole was about 2 times the entry hole. I thought it worked very well on deer and my Ruger 77 will shot under 1" group with them also.