It'll work !!! ........ one of my neighbors had a racoon family in his shed. He tried everything to get them out and no success......... until he filled the lawnmower with gas, started it and put it in the shed with the door closed.......... by the time the mower ran out of gas the racoons were gone and haven't been seen since.....
........... a smokey 283 would work great for armadillos or elephants.