308 for Prairie Dogs!!
Get A couple of Boxes of Black Hills 308 with the 168 gr Hollows and give them a try. They do cost more but with such a fine and expensive set-up I think you'll find the Black Hills ammo meets your need better. Then you can work up a load to try and match the 168gr. Black hills stuff. Good Luck!!!
The problem with America is stupidity. I'm not saying there should be capital punishment for stupidity, but why don't we just take the safety labels off of everything and let the problem solve itself?