I agree with the quartering away- on big pigs.
Just aim low on the regular sized ones.
I've always heard you can't aim too low on a pig, but proved them wrong by cutting the briskit fat on one last year.
To show you how resilient these beast can be here is a couple of pics of a small one I killed last year that took one hit just a little high with a 3 blade 100 grain muzzy. I had just shot its mommy and it didn't run far enough away so it got an arrow too. Well the shot was a little high and I had to climb down from my stand and go track him down. He was with the rest of the pack and I made a wide circle and had three of them in a bush at 10 yards. One by one they pilled out to my right, but the last one- my pig came straight at me so I sunk another 3 blade deep. Beast I tell you
