I am ready to start preparing for this summers prairie dog hunt, and am looking into trying some new load combinations. I shoot a 20" 1:9 heavy barrel AR. I've had luck with 69g Sierra HPBT's, 60g Sierra HP, and 55g V-Max. All of those I've found a pretty good recipe for. Looking for something accurate and explosive, considering trying something a little faster, maybe a 50g of some sort. Just looking for some good load suggestions, bullet and powder. Any suggestions would be greatly appreciated!