yes , you can kill a coon with an air rifle. You can kill hogs , deer and cows with a 22LR. but it ain't nearly as effective as a 22 magnum. The quicker something dies with one shot , the better I like it. I shot a truck load of critters with the 22LR . It was at age 16 when I discovered the 22 magnum. It was a real eye opener. Critters died quicker and at longer range. Crows were the first to feel my rath with a scoped 22mag. Crows no longer knew the range of safety like they did when I was packing a scoped Remington 552 speedmaster. Armadillos , Nutria rats , gators , coons , opossums , rabbits, and gray fox no longer required multiple shots from my 22 auto. Use a 22mag , save the 22LR for squirrels , rats , and tin cans. The 22 mag is one of the most useful cartridge there is , not too weak , not too powerful.