X3 on the "old style" bullets. I tried the new design Winchester Power Max bonded 150 gr. ammo in my 30/06. They were extremely accurate, and worked great on deer. Good price at Wal Mart too. I had some 30+ year old Remington 150 gr. Bronze Point ammo that I decided to compare. It was interesting that the old R-P BP ammo shot to exactly the same point of aim as the new WW ammo, and registered only 4 fps less on the chronograph! God Bless GI Ammo cans!