The 17mach2 was my favorite cartridge for ground squirrels at one time, but lately, we are setting up benches and shooting them at ranges to 250 yards, so the 17mach2 wasn't seeing a lot of use. So today I delivered my Cooper 17mach2 and almost 16,000 rounds of ammunition to the new owner. He now has two higher end 17mach2 rifles and 29,000 rounds of ammunition.