• Hornady Lock-N-Load 300 Winchester Magnum Cartridge Gauge
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Hornady

Hornady Lock-N-Load 300 Winchester Magnum Cartridge Gauge

Hornady Lock-N-Load 300 Winchester Magnum Cartridge Gauge

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The Hornady Lock-N-Load Cartridge Gauge for 300 Winchester Magnum is a precision-machined tool that lets reloaders check cases and loaded ammunition for proper fit in SAAMI specification chambers. By verifying each round before it reaches the firearm, it serves as a quality control step for consistent, safe ammunition.

Built for 300 Winchester Magnum, the gauge is intended for serious reloaders and shooters who want their handloads to chamber correctly every time.

Key Features

Brand Hornady
Product Type Cartridge Gauge
Caliber 300 Win Mag
Compatibility 300 Winchester Magnum
Function Checks cases and loaded ammunition for proper chamber fit
Standard SAAMI specification chambers
Manufacturer SKU 380718
UPC 090255807189
Condition New

How to use

Drop a resized case or a loaded round into the gauge to confirm it fits within SAAMI specification chamber dimensions before use.

Frequently asked questions

What does the Hornady Lock-N-Load Cartridge Gauge check?

It checks both cases and loaded ammunition for proper fit in SAAMI specification chambers.

Which cartridge does this gauge fit?

It is made for 300 Winchester Magnum, also listed as 300 Win Mag.

What is the manufacturer SKU for this gauge?

The manufacturer SKU is 380718 and the UPC is 090255807189.

Who is this cartridge gauge intended for?

It is a quality control tool for reloaders and shooters who want consistent, safe ammunition that chambers properly.

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