The Hornady Lock‑N‑Load .17 Cal/.22 Cal rimfire thickness gauge is a precision instrument designed for the accurate measurement of rimfire cartridge thickness. Engineered for use with .17 Cal and .22 Cal cartridges, this gauge ensures consistent performance and reliability in ammunition assessment.

• Classifying ammunition based on rim thickness ensures uniform ignition characteristics, thereby enhancing ballistic precision and overall shooting accuracy
• This validated methodology is employed by precision marksmen and varmint control specialists
• The rimfire gauge seamlessly integrates with your caliper, featuring bushings compatible with most .17 and .22 Cal rimfire ammunition, excluding 17 WSM, for precise measurement and enhanced functionality