Hornady Lock-N-Load Modified Cases .17 Hornet. A special fine thread is used to attach them to the gauges ensuring that they remain perfectly square for precise alignment in the chamber of your firearm. Second the neck of the case is made perfectly round and opened slightly to allow a standard diameter bullet to slip into the case mouth effortlessly but concentrically to ensure the most precise results possible. If your case is not listed below and you are needing a case modified please follow the instructions listed below. Please include contact information two fired pieces of brass not deprimed or resized (in case there are issues creating the modified case) as well as a check for 15.00. Please make checks payable to Hornady Manufacturing. We ask that you please use FedEx UPS or other direct shipping service. Using USPS may result in item returned to sender. Specifications for Hornady Lock-N-Load Modified Cases .17 Hornet: Manufacturer: Hornady Caliber: .17 Hornet Package Contents: Hornady Lock-N-Load Modified Cases .17 Hornet A17H The Hornady Lock-N-Load Modified Cases .17 Hornet A17H is a quality addition to the Hornady lineup. For more great deals on Reloading Measuring Tools by Hornady please browse our Hornady Reloading Equipment page. Hornady Lock-N-Load Modified Cases .17 Hornet