I went the other way with this "problem". Using an HW30 and CPHP .177 pellets I'm trying to train the krats to stay the hell out of my yard. I try to stick with body shots whenever possible. Most of the culprits only take one hit to get the message but I have one critter that is either really brave or really stupid and I'm afraid the HW95 is going to be the only thing he understands.