The Hornady Lock-N-Load Cartridge Gauge 300 Blackout (.308) (380714) is a steel drop in case gauge that lets you verify your 300 AAC Blackout brass and loaded rounds match SAAMI chamber dimensions. This 300 Blackout cartridge gauge is ideal for AR and bolt gun reloaders who want a quick go or no go check on headspace and case length before shooting.
Key Features
- Manufacturer part number: 380714
- Caliber: 300 AAC Blackout / 300 Blackout (.308)
- Product type: Lock-N-Load rifle cartridge gauge
- Primary use: checks sized cases and loaded cartridges for correct fit in SAAMI chambers
- Material: steel construction
- Measurement style: drop in go or no go gauge
- Design basis: machined to SAAMI maximum chamber dimensions for 300 Blackout
- Quantity: one gauge per package
Special Features
- SAAMI spec interior profile lets you confirm shoulder bump, case body sizing, and overall case length with a simple visual check.
- Durable steel body stands up to frequent use when you gauge high volumes of 300 Blackout brass and ammo for training, hunting, or defensive loads.
- Caliber specific markings keep this 300 Blackout gauge easy to identify when you keep multiple Lock-N-Load cartridge gauges on your bench.
Practical Benefits
- With the Hornady Lock-N-Load Cartridge Gauge 300 Blackout (.308) (380714), you can spot out of spec cases and rounds before they cause chambering issues or stoppages in semi automatic rifles and carbines.
- Routine gauge checks during loading help you maintain consistent, reliable ammunition for suppressed and unsuppressed 300 AAC Blackout setups.
- For reloaders who depend on 300 Blackout in AR pattern or bolt action rifles, the Hornady 380714 cartridge gauge is a dependable option for fast, repeatable chamber fit verification on every batch.
| MANUFACTURER | HORNADY |
| CALIBER | 300 BLACKOUT |