I live in Texas as well, and, although we don't have many pigs in my part of it, I've killed enough to be able to say there has been a lot of good advise given. I have a sentimental spot for .25-06, so that would be my vote of the options you listed, with a good penetrating bullet. 110 Accubond as fast as you can push it would be a great choice, but there are plenty of others.
My predator calling buddy has a bunch of farm and ranch land in the central part of the state. I was lucky enough to go on a helicopter depredation hunt with him once. The guys that do it for a living use Benelli shotguns with buckshot, but, keep in mind the shots are probably not averaging much over 30 yards and the angle makes the brain and spine vulnerable, so that combo stacks them up.
I took a 7.62x39 AR with a red dot and 123 SSTs, and it was tons of fun and very effective. Every shot was running, so a few took extra rounds to finish off. One of them was a huge boar that would've went over 300. We killed 21 pigs, 2 coyotes, and a cat in under an hour. They have their property flown 2 times a year (that hour was just a small portion of one place), and they kill just as many every time they fly…
I haven't had a chance to make it, but my dad and uncle have gone up to north Texas and set up on a cousin's hay grazer patch while he was swathing it. Just about every pass through the field flushes out a pig or 10, and it's kind of like busting a pheasant or covey of quail. The old man had a lot of fun with an M1 Garand…