Between the members of my family we have killed 6, as of 4 weeks ago that were over 300, all were killed with 250g or 255g hard cast .41 caliber bullets. 4 were killed with a .41RemMag and two (mine) were killed with a .41GNR#2 14-inch Reeder Custom Contender. 6 bullets center front shoulder pass through at from 12-36 yards. 4 dropped in place with broken shoulders, 2 ran less that 10 feet with one broken shoulder, missed the off side. Use the CORRECT bullet, pick your shots, and they die just fine. Dont let all the horror stories about bullet proof pigs rattle you before you even start, rest assured you will be rattled enough when you are amongst the beasts. Coach gun??? You mean a short DB 12ga with external hammers
. If that is correct Id sure look a getting some Lightfield lites for it if it will take modern loads.