On those smaller ones it’ll stiffen them up right there with a chest shot, at least up to 40 pounders. I shot a 25-30 pounder right in the root of the tail as they were making tracks for safer places. It broke his pelvis and rendered both back legs inoperable.
Brain shots are definitely best but I don’t pass any shots or take any prisoners when it comes to swine. The big 17 is capable of some amazing stuff, I really wish there were some tough bullets for it.
