A few years ago, I was line hunting scrub in Texas. The gentleman on my left, about 15 yards, was in his late 70s and not very spry. About 10 yards left of him, no more than 12-15 yards out, a hog got up out of this wallow that you just couldn't believe. It was impossible that we didn't see it before it got up. But we didn't. It ran straight at the older fellow on my left, like a missile. Before I had time to really react, I heard the shot, then the old fellow went down.
He had been carrying his rifle by the wrist,barrel down,in his right hand. That hog, later weighed at 198 lbs, came in so darn fast, all the fellow had time to do was flick the safety, angle the barrel up, and fire. Turns out, he actually had muzzle contact or awfully close, with that hogs skull. Pulled the trigger and the hog dies right then and there. But momentum carried him into the shooter, where he gouged up his leg enough that it needed stitches. The post mortem showed the cranial cavity was blood jello - complete instantaneous CNS control center destruction.The rifle was chambered in 22-250.