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Hornady

Hornady Lock-N-Load A303 Modified Case .303 British

Hornady Lock-N-Load A303 Modified Case .303 British

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The Hornady Lock-N-Load A303 Modified Case is a precision reloading tool made for .303 British cartridges, built to work with the Hornady Lock-N-Load OAL gauge system. Its special fine thread attachment keeps the case perfectly square to the gauge, while the rounded, slightly opened neck lets you insert a bullet by hand and hold it concentric for a true cartridge overall length reading.

Use it to find the exact bullet seating depth your rifle prefers, then set your seating die to that measurement. The dial caliper and OAL gauge are sold separately.

Key Features

Brand Hornady
Model Lock-N-Load A303
Manufacturer SKU A303
UPC 090255704105
Caliber .303 British
Product Type Modified Case
Compatibility Hornady Lock-N-Load Precision Gauges
Condition New

Compatibility

Designed for .303 British cartridges and compatible with the Hornady Lock-N-Load precision measuring system.

How to use

Thread the modified case onto a Hornady Lock-N-Load OAL gauge, insert a bullet into the case neck, and chamber the assembly to find the rifling contact point. Measure the resulting length with a dial caliper to set your bullet seating depth.

Frequently asked questions

What is the Hornady Lock-N-Load A303 Modified Case used for?

It is used with Hornady Lock-N-Load precision gauges to measure cartridge overall length and determine optimal bullet seating depth for .303 British ammunition.

Which caliber does this modified case fit?

It is made specifically for .303 British cartridges.

How does the modified case attach to the gauge?

It uses a special fine thread attachment that ensures perfect square alignment with the gauge.

Are the dial caliper and OAL gauge included?

No, the dial caliper and OAL gauge are sold separately.

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