Magtech 300BLKB 300 Blackout 123gr FMJ Ammo - 50rd Box/20 Case

The Magtech 300BLKB delivers consistent performance for 300 Blackout training and tactical applications with its 123-grain full metal jacket construction. This bulk ammunition package provides 1,000 rounds total across 20 boxes, making it an economical choice for high-volume shooting.

What Makes This Different

Magtech's 300 Blackout load uses precision-manufactured brass cases and clean-burning powder formulations that reduce fouling compared to budget alternatives. The 123-grain FMJ bullet weight sits in the optimal range for subsonic performance when paired with suppressors, while maintaining reliable cycling in both bolt-action and semi-automatic platforms. Quality control standards ensure consistent velocities within 50 fps across the entire lot.

Key Features

• 123-grain full metal jacket bullets for reliable expansion and penetration
• Clean-burning powder reduces barrel fouling and extends cleaning intervals
• Boxer-primed brass cases suitable for reloading applications
• Bulk packaging with 1,000 total rounds (50 per box, 20 boxes per case)
• Consistent powder charges deliver uniform velocities for predictable accuracy
• Compatible with all 300 Blackout chambered firearms and magazines
• Non-corrosive primers ensure long-term storage reliability

This ammunition performs effectively across multiple shooting disciplines, from precision rifle training to tactical carbine courses. The 123-grain weight provides excellent stability in standard 1:7 and 1:8 twist barrels commonly found in AR-15 platform rifles. Range testing shows consistent groupings at 100 yards with minimal velocity deviation between rounds. The full metal jacket design feeds reliably through semi-automatic actions while providing clean target holes for scoring.

Technical Specs

• Caliber: 300 AAC Blackout (.300 BLK)
• Bullet Weight: 123 grains
• Bullet Type: Full Metal Jacket (FMJ)
• Case Material: Boxer-primed brass
• Primer Type: Non-corrosive
• Packaging: 50 rounds per box, 20 boxes per case (1,000 total)
• Manufacturer: Magtech Ammunition (CBC)
• Country of Origin: Brazil

This case quantity provides serious shooters with consistent ammunition from a single lot, eliminating point-of-impact variations that occur when mixing different manufacturers. The bulk format reduces per-round costs while ensuring adequate supply for extended training sessions or competition preparation.