I get asked this a lot, so forgive me if I'm repeating myself from another post elsewhere.
No one is eating the pigs. I leave them for yotes and scavengers unless the landowner wants them drug off. For that, I am often called unsporting or unethical. I know you're not suggesting this, but there are those who would. Fortunately I'm well past worrying about what I'm called. I'm perfectly fine being labeled a senseless killer by those who need to brand it. For reasons I can't explain, I just really like it… A LOT!!!
Some folks say the crop damage is negligible. I disagree, but it doesn't matter what I think. The farmers are the ones who know the impact on their checkbooks, and they want them dead. If you want to hunt off the good graces of landowners, you follow their rules. Every minute I spend messing with a dead hog is a minute I waste not killing another one. Besides, no one wants me dropping off a shot up pig on their lawn at 5am after it's been dead all night.
Depending on what the hogs are eating, they would taste fine. When you add the trouble of skinning/gutting or quartering and packing in ice, a spiral honey ham from United begins to sound a lot better.
I'm shooting a DPMS AR10 308. I've noticed many shooters have big egos wrapped around their guns. I just want it to work… hell my life may depend on it (and it has at times!). I like shooting suppressed, but the suppressor affects how the gas system operates, so I've made some functional modifications and some just to suit my liking. I'm happy with it, but if I were looking today, I'd put a little research into something offering a side charging handle and gas piston before deciding.
My AR has a YHM Phantom 7.62 can. It's heavy but was relatively inexpensive at the time and had a solid reputation. I don't recall if it was full auto rated, but I remember reading many reviews indicating it was built like a tank. While I don't shoot full auto, I have dumped a couple of magazines fairly quickly into herds of hogs and the can will definitely get hot, so the more durable the better.
I don't recall the stats anymore, so I could be way off on this, but I think my 18" AR has a muzzle blast of close to 170db. If I recall, most suppressors in this class, at least when I got it several years ago, were suppressing about 27db to 30db, which would put my suppressed blast near the 140db range (don't quote me on this). My ears have been shot out since I was very young, so they are overly sensitive to gunfire now. I still wear ear protection with everything I shoot, suppressed or not. For what it's worth, the noise doesn't bother most of my friends with normal hearing.
If anyone else is shooting pigs, I'd love to see pics and hear about how they were shot. Dig up old pics if you have to!