Are you sure you didn't find it because it went all the way through? 2500 fps and a 140+ grain bullet I would expect to pass.
The only reason I spent time digging through this hog was because there was no exit wound. As I stated in the video this was the first hog in 9 months where the bullet did not blow through. Exit wounds on every other hog is very noticeable.
Shield on this bore was thick. Opposite shield was completely in tact. I truly believe bullet is somewhere in cavity.