I know 2 guys who are good enuff on runners that they can stand there ground (I climb the nearest tree) one swears by his .40 Glock and the other uses a Delta Elite 10mm... From the sounds of the shooting instructions, you are doing a service. The farmer may not want you wasting time tracking hogs as he will find them under the circling buzzards later. Keep this in mind. I hope you drop 'em all clean but if not move on to the next one!
Brent