Check with Matt & Cheryl Napper-they own & operate the Shilo ranch near Ada, Oklahoma-hog Bowhunting only. Cheryl has a Photo she posted where she peeled away the hide & skin on a freshly killed hog & shows all the vitals behinnd the shoulder & ribs. I too, have had Double lung hits & still had to put another arrow in them plus been charged & chased. I just finished a tour of 3 states making a informational video on places to Bowhunt wild hogs so I have had a few memorable experiences of late. Good Luck..
This was my Best hog taken with Ray Modesitt near Diboll, Texas.