The .17 Mach II (17 HM2) is a devastating little rimfire cartridge. This cartridge and ground squirrel / prairie dog design is printed in full color (front/back) on a Light Sand or Ash color, 100% Pre-shrunk Cotton Shirt (Gildan 2000).  

The .17 Mach II, called the .17 HM2, is a rimfire cartridge developed by Hornady from a necked-down CCI .22 Stinger case. It delivers high velocity, flat trajectory, low recoil, and excellent varmint performance in all types of rifles, earning niche popularity among small-game hunters and precision rimfire shooters. Don't let its size fool you, the Mach II is a wicked little rimfire cartridge!

(Image look, size and placement may vary from mock-ups)