I'm another Specwar762 owner, and I'm happy with it like the other two guys.
I looked at the harvester too but I like that the specwar can take a mag dump or two with my 5.56. Even though the mounts are not cheap, they are fairly decent muzzle devices in their own right and the lockup is rock...
If I had to have only shotgun (thank God we are not there yet), I would take a 26" SxS or O/U 20 ga.
Sure, the semi-auto 12s are nice, but you can effectively down a dove, ring-neck/wood duck, or turkey with a 20 gauge with interchangeable chokes. Plus, you don't get black-balled from the wild...
28" 12 gauge benelli M1 field for ducks or dove. 26" 20 gauge beretta O/U for quail. Turkey - usually my duck/dove gun at 28" with a full choke.
Many of the quail hunts I've been on - the host would not allow anything more than a 20 gauge and had to be a break-action shotgun (for safety)...
I would argue that hog hunting is more extermination than hunting.
Don't take this as the gospel truth, but I have heard that regulations are loosely enforced for hog hunters because they are eradicating a pest. I still try to be legal though, and the previous remark is hearsay. Take it for...
Best for me was putting a large doe down with my 6.8 AR...at 80 yards. DRT.
Worst was sitting in a stand through the pouring rain over thanksgiving. The lightning started. I immediately got down and called for a quick pickup.
Rifle is a total mutt.
SAA lower, EFX fixed stock, Geissele trigger, Stag 6.8 spc 2 barrel and bcg, Midwest gen 2 SS. The optic is a super cheap weaver kaspa that I haven't replaced yet.
Believe it or not...this one weighed north of 100 lbs. The camera angle is bad for sizing but he was the size of a very large Labrador retriever. It took two of us to lift him.
223 seems to do the trick. Even with FMJ, the temporal cavity seems to encompass about 1/5 of an armadillo.
I've shot them with 12 GA steel 4 shot, and 9mm too. Never seems to be a problem with any of those calibers.