My go-to in the past has been to block off all the exits and run tractor exhaust through a hole. That didn't work this time for some reason. The smoke bombs don't do anything. You can't get the sulfur bombs any more. Water works, but I'm on a well and DAMN it uses a lot of water, and you have to be ready to smack 'em with a shovel when they come running.I have used those smoke cartridges followed by flooding for rats.
I'm wondering if THIS rifle is a smoothbore...I bet it is. Maybe gramps will let me borrow it.