Hornady Lock-N-Load 303 British Modified Case OAL Tool
S118433
- Reloading measurement tool for 303 British — establishes bullet-to-lands distance in your rifle
- Works with the Hornady Lock-N-Load OAL Gauge (sold separately)
- Threaded case neck accepts the LNL OAL Gauge for repeatable measurement
- Manufactured to SAAMI specifications
- Determines maximum cartridge overall length (OAL) for your specific chamber
- Particularly useful with 303 British, where throat dimensions vary between rifles
- One modified case per calibre — calibre-specific, not interchangeable
The Hornady Lock-N-Load Modified Case for 303 British is a reloading measurement tool — not a loaded cartridge. It is designed for use with the Hornady Lock-N-Load Overall Length (OAL) Gauge (sold separately) and lets handloaders measure the precise distance from the cartridge head to the rifling lands in their own 303 British rifle. The modified case is manufactured to SAAMI specifications and has a threaded neck that accepts the LNL OAL Gauge. You seat a bullet of your choice in the modified case, chamber the assembly in your rifle, and the gauge reads the maximum cartridge overall length for that specific chamber. The 303 British is a rimmed cartridge that remains popular in the UK for deer stalking and target shooting, and handloaders working with this round benefit from knowing the exact lands distance when developing accurate loads. Throat dimensions can vary significantly in older service rifles and sporting conversions, making this measurement particularly worthwhile. One modified case per calibre is required.
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