When I am sniping these big ones out (not just blasting them), with a fragmenting OTM bullet like the Sierra 77 grain MatchKing in those IMI rounds there is not a chance of bone crushing penetration like with a Barnes bullet, so only cure is to slip on into the lungs and blow them both out with the heart, then they only have one breath left, the one they previously took. That takes precise shooting to make a hit like that out 260 yards in the pitch dark.
My SIG 556 and FLIR T-70 with the ACOG TA02 work in excellent harmony together to pull this off over and over again.
The bullet entered about two inches behind the scapula through the rib cage and disintegrated on impact showering the lungs with high speed fragments that tore them all to [beeep], a little too low would have hit the heart, a little too high would have hit the vertebral column, a little to the right would have hit the diaphragm, a little too left would have smashed his fore-shank. It's all good when you can place a shot precisely in the boiler-room
Of course, having graduated from veterinary school some 35+ years ago, it does help to have an intimate knowledge of swine anatomy too so you can picture in your mind's eye what your carefully placed bullet is going to head into internally so that you can produce a lethal wound and not just take any shot that presents itself. These lage 350+ pound hogs are tough critters and very difficult to bring down as you know.