Just make sure you pack a very good gun and are up a sturdy tree. Barring that get a spear with a pole as thick as your arm and a tip with a wide guard on it. The guard is important, because a boar will impale itself to get to you and there’s a good chance it will succeed before expiring.

F-701 here, gone through 2 refills and it’s still going strong. I have heard that stealing parts of yours might be worth the investment though.