Hornady Lock-N-Load 243 WSSM Modified Case

• Purpose-made modified case for use with the Hornady Lock-N-Load O.A.L. Gauge
• Chambers in any .243 WSSM rifle to measure the true cartridge overall length to the lands
• Manufactured to SAAMI specifications for correct fit in .243 WSSM chambers
• Drilled and tapped to accept the O.A.L. Gauge bullet-holding assembly
• Allows precise control of bullet seating depth relative to the rifling
• Repeatable datum point for handloaders developing accurate loads in this short-action calibre

The Hornady Lock-N-Load Modified Case for .243 WSSM (Winchester Super Short Magnum) is a precision reloading tool for use with the Hornady Lock-N-Load O.A.L. Gauge. A modified case is a factory cartridge case drilled and tapped to accept the gauge's bullet-holding stem; it chambers in your .243 WSSM rifle exactly as a live cartridge would, allowing you to measure the precise distance from the bolt face to the rifling lands for that specific barrel. This overall length measurement is the key reference point for load development, letting you seat bullets to a controlled jump or engage the rifling consistently across an entire batch. Hornady manufactures this case to SAAMI specifications, ensuring it fits .243 WSSM chambers without modification or excessive resistance. The .243 WSSM is a short-action, high-velocity cartridge well suited to deer stalking and long-range fox shooting, and precise seating depth control is particularly worthwhile when developing accurate loads for this calibre.

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