Has anyone here had expierence shooting the Sierra Hollow Pt Gameking bullets? I am mainly interested in the 7MM and 308 caliber. I used to use the Hornady 190 grain BTHP bullets for steel silhouette shooting and found that they worked well for big game as well. I have been using a lot of the Sierra Pro-Hunter bullets in 6.5,7mm and 308. If you have used these Sierra HP's how did they perform on big game? Thanks.