This cartridge is based on the 22 Long Rifle necked down to 17 caliber. It is not a variation of the 17 Hornady Magnum Rimfire (HMR) and is not interchangeable with it.
You must be 21 years or older to order ammunition. Ammo must ship UPS ground. Due to Department of Transportation regulations, we cannot accept returns on ammo. Please check local laws before ordering.