Hornady Lock-N-Load Cartridge Gauge .308/.300 Win Mag

Hornady Lock-N-Load Cartridge Gauge

Precision ammunition demands precision verification. The Hornady Lock-N-Load Cartridge Gauge is a straightforward tool that answers a critical question: does your ammunition fit properly in your firearm's chamber?

What It Does

This gauge allows you to check both fired cases and finished ammunition against SAAMI (Sporting Arms and Ammunition Manufacturers' Institute) chamber specifications. It's a go/no-go verification system that catches potential issues before they reach the firing line.

Why It Matters

For Reloaders: Verify your handloads meet proper dimensions before firing. Oversized ammunition can cause dangerous pressure spikes or feeding failures.

For Shooters: Check factory ammunition or reloads for proper fit in your specific firearm. Chamber dimensions vary slightly between firearms, and this gauge ensures compatibility.

Key Features

• Designed for .308 Winchester and .300 Winchester Magnum cartridges
• Compatible with Hornady Lock-N-Load reloading system
• Simple, reliable go/no-go design
• Essential quality control for safe, reliable shooting

This is not a luxury—it's a fundamental safety tool for anyone serious about ammunition quality.