i have shot pretty close to 60 hogs with a bow 11 since June. to date shooting hogs up to 300lbsi i have hit them in the spine shot them through the shoulders angling towards and away to date ive onlyhad 4 arrows fail to completley penetrat 2 were on small hogs shot at an extreme downwards angle and the arrow hit the dirt and stopped the hogs were less then 25 lbs. not sure what type of bow you are using or what ranges you plan to shoot them most of my shots are under 20 yards and i am using muzzy 100gr broadheads. to some the say you need 70 lbs but im shooting at 60 lbs and have killed them with 55 lbs with complete penetration most importantly is hitting the vitals