Frontier FR400 300 Blackout 125gr FMJ Ammo - 20rd Box/10 Case

The Frontier Cartridge FR400 delivers military-grade performance in 300 Blackout with consistent 125-grain full metal jacket projectiles. This ammunition combines Lake City brass cases with proven powder formulations to provide reliable cycling in both suppressed and unsuppressed firearms. Each case contains 200 rounds packaged in convenient 20-round boxes.

What Makes This Different

Frontier ammunition utilizes Lake City military brass, the same premium cases trusted by military and law enforcement agencies worldwide. The 125-grain FMJ projectile achieves optimal velocity for 300 Blackout applications while maintaining consistent performance across temperature extremes. Unlike commercial brass alternatives, Lake City cases deliver superior durability and dimensional consistency for enhanced accuracy.

Key Features

• Lake City military brass cases for maximum reliability and reloadability
• 125-grain full metal jacket projectiles with boat-tail design
• Optimized powder charge for consistent 2,200 fps muzzle velocity
• Compatible with AR-15 platform rifles and bolt-action 300 Blackout firearms
• Non-corrosive Boxer primers for reliable ignition
• Case quantity: 200 rounds (10 boxes of 20 rounds each)
• Manufactured to SAAMI specifications for chamber compatibility

This ammunition performs consistently across various barrel lengths, from 8-inch pistol configurations to 16-inch rifle barrels. The 125-grain projectile weight provides effective terminal performance for hunting medium game while maintaining flat trajectory characteristics. Temperature stability ensures reliable function in conditions ranging from sub-freezing to desert heat, making it suitable for duty use, competition shooting, and recreational applications.

Technical Specs

• Caliber: 300 AAC Blackout (.300 BLK)
• Bullet weight: 125 grains
• Bullet type: Full Metal Jacket (FMJ)
• Case material: Lake City brass
• Primer: Non-corrosive Boxer
• Muzzle velocity: Approximately 2,200 fps (16-inch barrel)
• Packaging: 20 rounds per box, 10 boxes per case
• Manufacturer: Frontier Cartridge

Frontier FR400 ammunition provides the consistency and reliability demanded by serious shooters without the premium pricing of match-grade options. The bulk case packaging offers substantial cost savings for high-volume shooters while ensuring adequate supply for training and competition use.