Sierra Outdoor Master cartridges utilize innovative components and production processes that deliver an economical cartridge suitable for all purposes. Packed with hard-hitting terminal performance. Designed for magazine length and reliable feeding in an AR platform. Cartridges are loaded with brass casings, making reloading with conventional equipment easy and economical. *Note This ammo uses mil-grade primers. Best for use in AR-15s. Primer pockets must be reamed or swaged in order to reload. Specifications: 223 Rem 55 gr Hollow Point Boat-Tail (HPBT) 20 Per Box/10 Cs
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| Application: | Hunting |
| Boxes Per Case: | 10 |
| Rounds Per Box: | 20 |
| Casing Material: | Brass |
| Bullet Type: | Hollow Point Boat Tail |
| Muzzle Velocity: | 3240 fps |
| Model: | Outdoor Master |
| Caliber: | 223 Rem |
| Bullet Weight: | 55 gr |
| Muzzle Energy: | 1281 ft lbs |