...dunno if it's legal, but I figure it'll do the job...

From Dallas, a referral, "m1a m14 rifle hog hunt texas".
No clue as to what the laws are for hunting those here in Texas, but I imagine the M1A would take pretty much any Texas game a hunter wanted to. 150 grains of 0.308-inch goodness at 2600 feet per second, I reckon that'd take care of most wild hogs here or anywhere else. I've heard of them being taken with pistols as well, as small as my beloved 10mm if one uses the right ammunition. I always got a bit of a chuckle about the fact that a pistol called the Razorback could be used to hunt razorbacks...