What .223 bullet do you use for Hog Hunting?

Had the opportunity to try the DRT Ammo for the fist time in East TX during the Wild Hog Roundup. We used both the 55 grain and 79 grain in .223 and the .308. The .308 left a 4-5 inch mushy bulge on the far side of an approx 200 lbs pig but no exit wound. Two 50-70 lbs pigs went down unremarkably with the 55 grain. One had a large exit wound on its soft underside. That was from a 10 yard frontal shot. Attachment 12043I hit a approx 250 lbs sow at 125 yards behind the shoulder but high with the 79 grain. Unlikely the vitals took a direct hit. She went down but came back up immediately. A follow up hit below the spine 2/3 of the way back. No exit wounds. She made it about 30 yards and collapsed. A .45 round behind the ear finished her. We didn't get a chance to examine the wounds but plan to do so next time. Attachment 12044