Underwood 223rem 55gr - Controlled Chaos 20rd 10bx/cs

Underwood 223rem 55gr Controlled Chaos ammunition delivers reliable, consistent performance for tactical training, sport shooting, and defensive applications where precision matters. This 20-round-per-box configuration (10 boxes per case) is purpose-built for shooters who demand ammunition engineered to strict quality standards. The .223 Remington platform remains the gold standard for AR-platform rifles, carbines, and designated marksman applications across law enforcement and military training pipelines.

The 55-grain projectile weight represents the classic military rifle round specification, optimized for velocity, stability, and terminal performance in the 1:9 and 1:12 twist-rate barrels common to modern AR-15 platforms. Underwood's Controlled Chaos line emphasizes consistent powder charges, precise bullet seating, and quality brass casings that support both accuracy and reloadability. This cartridge configuration produces predictable ballistics across standard 16-inch and 14.5-inch barrel lengths, essential for shooters requiring sub-minute-of-angle groupings at 100 yards and reliable shot placement at intermediate distances.

Law enforcement instructors, military marksmen, competitive shooters, and serious sport shooters benefit most from this ammunition's quality-control rigor and consistent chambering across magazine-fed, semi-automatic platforms. The case-pack format (10 boxes × 20 rounds = 200 rounds total) accommodates range training cycles, qualification runs, and skill-maintenance protocols without excessive storage burden. Compatibility spans all standard .223 Remington-chambered rifles; users should verify barrel twist rates and magazine capacity for optimal performance and feeding reliability.