last month i had a raccoon family take up in my barn. I think the 4 babies were botn here, cause i saw mommy raccoon a month earlier alone.
anyway, they had gotten into the feed and were all getting big FAST!
naield mommy with 9mm (emp that i was carrying), felt bad, for a time, but once i tried to relocate a pair 5 miles away. in 8 days they were back!
day after mom bought it, i found the 4 youngins swimming in the horses water tank. don't know if they went for a drink and fell in or what. grabbed 'em one at a time by the scruff of the neck and put 'em in a hav-a-heart cage and relocated them to a nice wooded area about 10 miles away. theyr'e cute when they're small.
20 miles is the recommended distance. Be aware of the laws though. In my state, it is illegal to relocate them.
I have killed many with a .177 pellet gun after they were trapped. It requires a very well placed shot though and that is tough when they are in a cage. I recently started using a 22 though and that was better.
From what I have seen, including a coon that took multiple shots from 9mm, they can take some punishment before keeling over.