I loaded some 53 gr. Barnes Triple Shocks for my .223 and got good results on a box ofsoil at about 100 yards. The box was about a foot cubed, and the bullets penetrated 8-10 inches. I weighed them back out at 52.8 gr., with all mushrooming as advertised. I'd still probably use them for neck shots only.

Ifthey're the ones with the little green tips, they are Hornady V-Max and they ARE NOT A DEER BULLET. They have a thin jacket and fragment into pieces when hitting something as thin as cardboard or even broomweeds.