Thanks for the information. I was just going to take the 9mm as backup only, loaded with hardball. The primary weapon will be an 1894P Marlin, 44 mag, and will probably have some 305 gr. Cor-Bon pentatrators. In the Marlin that should give me somewhere around 1,700 fpe at the muzzle.
I've never been around the hogs in the wild - I've read enough to give them a great deal of respect! What if there is no tree to climb?