Just a thought... If your aiming at the neck IOT disrupt the pig’s central nervous system (best option as if you heart/lung shoot them they tend to still run a fair distance) then a softer bullet might be a better option.
The reasoning is - you don't necessarily want a pass-thru as a rapid-expanding bullet will transfer more energy into that critical area and break it's neck.
Since you will be PCing your bullets... You don't need to worry about leading your barrel. And there is some thought process that the PC acts a bit like a jacket, keeping it from deforming in the barrel at high velocities and helping hold a softer alloy bullet together and not over-expand.
The real answer to your question is what an earlier person said... It's time to pour 10 “soft” and “hard” bullets, PC them, and shoot them into some test medium to see how they react. And of course, post what you find out here.