Re: How much Energy is needed to take an hog ?
IMO of the biggest problems with killing 200 lb hogs and being able to find them up to a reasonable distance is when the shooter places his shot to close to center of the shoulder. These larger hogs have a much thicker and tough layer of cartilage than smaller hogs. I don't know how many hogs I have shot with a 30-06 and .308 usually 150 gr core lokts ( I know not the best hunting bullet ) in the shoulder at less than 100 yds and the bullet never exits or even makes very far in the other shoulder even on hogs around 150lbs. These shoulder shot hogs usually on make it 75 yds or less before they drop, but placing the bullet slightly farther back and getting into the vitals is your best bet. I have killed hogs with .22LR,.223,.243,25-06,.308,.30-06,.338 EDGE AI, and .357. Several of the hogs taken with the .22LR were 180-200lbs all these were head shots close to the eye and had some luck involved and sometimes more than one shot. 25-50yds close to the eye there seems to be a weaker part of the skull were the bullets will penetrate, anywhere else on the skull even the ear the .22LR seems useless, unless you are point blank. Lots of hogs caught in traps have got their .22LR headshot death this way. Every hog I have ever shot with the .223 that I can remember has been a head shot and all DRT. Anything bigger cartridge that I have tried will get the job done, shot placement is key. But as it goes in any situation, the larger the cartridge the more shot placement error is reduced.