Lee Auto Prime Shell Holder #16 Auto Prime Shell Holder

The Lee Auto Prime Shell Holder #16 is a precision reloading component designed specifically for hand-priming brass cases with the Lee Auto Prime priming tool. This shell holder accommodates a specific cartridge size range and is engineered to work exclusively with the Lee Auto Prime system, not with standard reloading presses. Lee Precision manufactures 20 distinct shell holder sizes across their product line to address the full spectrum of cartridge dimensions from small pistol rounds through large rifle calibers.

Hand priming with the Lee Auto Prime offers reloaders tactile control and feedback during the critical priming stage of ammunition assembly. The #16 holder's dimensional tolerances ensure consistent, centered case positioning during the seating stroke, which directly impacts primer seating depth uniformity—a critical variable for consistent ignition. The holder's compact footprint and lightweight construction (0.04 lbs) make it practical for bench-mounted or portable reloading setups. Shell holder wear is minimized through precise engineering, preserving case mouth integrity across multiple reloading cycles.

Handloaders pursuing precision rifle ammunition, competitive shooters optimizing load consistency, and reloaders who prioritize process control benefit most from the Lee Auto Prime system and this dedicated shell holder. Unlike press-mounted priming, hand priming allows operators to sense primer seating resistance and detect potential issues before they affect a finished round. Lee also offers a shell holder kit featuring 11 popular sizes that cover over 115 cartridge variants, providing a cost-efficient entry point for shooters loading multiple calibers. The #16 holder is ideal for those needing the specific cartridge compatibility this size provides.