Hornady Frontier 5.56x45mm NATO 55 Gr Full Metal Jacket (FMJ) Ammo, 250th Anniversary Combo Pack Overview: Frontier Cartridge 5.56x45mm NATO 55 Grain FMJ ammunition is a bulk training and range-focused load designed for consistent performance in AR-platform rifles and other 5.56 NATO chambered firearms. Packaged as a 250-round value pack, it is intended for high-volume shooting, training sessions, and general target practice. Key Features: 55 Grain Full Metal Jacket bullet: Reliable feeding and consistent accuracy for range use 5.56x45mm NATO specification: Compatible with rifles chambered in 5.56 NATO and .223 Bulk 250-round packaging: Ideal for extended training and high-volume shooting Brass casing: Reloadable and durable for repeated use Consistent factory loading: Designed for reliable ignition and uniform ballistics AR-platform optimized: Suitable for semi-automatic rifle systems Specifications: Manufacturer: Frontier Cartridge Category: Centerfire Rifle Ammunition Caliber: 5.56x45mm NATO Bullet Type: Full Metal Jacket (FMJ) Bullet Weight: 55 Grain Case Material: Brass Rounds Per Box: 250 Boxes Per Case: 2 Applications: Target shooting: Ideal for paper and steel range practice Training: High-volume use for AR-15 style rifles Recreational shooting: Consistent performance for casual range days Skill development: Suitable for marksmanship and rifle handling drills Additional Features: Bulk value pack: Reduces cost per round for frequent shooters Smooth cycling: FMJ design supports reliable feeding in semi-automatic rifles Reloadable brass cases: Supports handloading and reuse Consistent ballistics: Manufactured for shot-to-shot uniformity AR-platform compatibility: Works well in standard 5.56 NATO systems Range-focused design: Optimized for training rather than terminal performance UPC: 090255730586MPN: FR604