I used to use BB’s with a Pumpmaster 760 to smoke mice and rats in my first (slum hole) apartment in college. In the evenings, I would lay tin foil all over the floor in my kitchen and sprinkle a few bits of peanut butter Captain crunch in the center. Waiting with the rifle ready, pumped 3-4 times, I would shoot from my back bedroom to smoke the tiny intruders. Over the course of a few weeks, I was killing a few per night at first, and in total, took several dozen rats and mice out of our house, until it finally seemed like the issue was finally squashed. Far more productive than traps and glueboards - and more fun.