Hossbreed, my load for feral hogs has always been Winchester 240grn. SP in both my .44 Auto Magnum Carbine, and my 8 3/8" S&W Model 29, or my Ruger SBH. with the 7.5" barrel.
Note: I hand load for just about every cartridge I own which is quite a few, but the hogs I've shot, which is quite a few, the 240grn SP, put them down with minimal meat damage almost immediately. I load mine using the Nosler 240grn SP bullets and load them to the approximate velocity that was delivered by the Winchester store bought, using the WW296 powders. and a magnum primer.
If you plan on hunting out by Arizona in the marshes, you probably won't have to shoot much over 100 yards and more than likely closer to 50 yards or less. Believe me they do taste very good when barbequed, and the bacon is out of this world. Just make sure you smoke the hams etc.