Barrett Precision Ammo 50 BMG Rifle Ammunition MTAC Solid Copper 660 Grain 10 Rounds 19978 UPC 810021512112
Product Description
Barrett Firearms® Precision Ammunition, (SKU: 19978 / UPC: 810021512112), represents the pinnacle of extreme long-range (ELR) factory munitions chambered in the legendary .50 BMG (12.7x99mm NATO) caliber. Delivering a match-grade 660-grain monolithic copper projectile in a convenient 10-round deployment box, this load is engineered specifically to extract absolute sub-MOA mechanical precision from anti-materiel and target rifles. Built for ELR competitive marksmen, tactical duty snipers, and extreme-distance shooters who demand factory consistency on par with meticulously hand-weighed custom loads, this munition fulfills the most demanding long-distance mission profiles.
At the core of this precision load is the monolithic 660-grain Cutting Edge Bullets MTAC projectile, precision CNC lathe-turned from high-purity solid copper. Designed with an aggressive aerodynamic secant ogive, low-drag boat tail, and integrated driving bands, the MTAC projectile cuts through trans-sonic atmospheric turbulence with an impressive G1 ballistic coefficient of 0.777. Leaving standard 29-inch barrels at a scorching 2,800 feet per second, the round generates over 11,480 foot-pounds of muzzle energy. The monolithic architecture ensures zero core-jacket separation, uniform mass dispersion, and consistent trajectory out past 2,000 yards without breaking apart upon high-velocity impact.
Every round is staged in premium, heavy-drawn virgin reloadable Barrett-headstamped brass casings manufactured to exacting concentricity tolerances. The cartridges feature uniform neck tension, a standardized overall length of 5.450 inches, clean-burning temperature-insensitive propellants, and staked, sealed Boxer primers. This provides completely reliable ignition, butter-smooth feeding through box magazines, and consistent extraction in semi-automatic platforms like the Barrett M82A1/M107A1 as well as precision bolt-action platforms like the M95 and M99.
*Master Ballistician Bench Notes & Range Staging Guidance:*
Chamber Compatibility & Pressure Advisory: Engineered exclusively for firearms chambered in standard SAAMI/CIP .50 BMG (12.7x99mm NATO). CRITICAL: Never attempt to chamber or fire in wildcat or non-standard chamberings (.416 Barrett, .408 CheyTac, .50 DTC European). Ensure barrel twist rates (recommended 1:15-inch standard) are properly stabilized for 660gr projectiles. Inspect muzzle brakes and sound suppressors (such as the Barrett QDL) for alignment and caliber-correct clearance before live firing.
- Verify the firearm chamber stamping and barrel markings match the exact SAAMI or NATO cartridge designation printed on the ammunition headstamp and box prior to loading.
- Inspect individual cartridges during magazine staging for seated primer uniformity, case wall integrity, and consistent overall cartridge length (COAL) free of bullet setback.
- Load magazines smoothly, indexing the heavy 50 BMG cartridge rims forward against the feed lips to prevent rim-jam, and confirm muzzle device tension prior to cycling.
- Verify cold bore zero and ballistic elevation drop tables at 100 or 300 yards when transitioning from standard military ball (M33 660gr) to lathe-turned MTAC solid match ammunition.
- Store remaining ammunition in a cool, dry, climate-controlled environment (ideally inside a sealed M2A1/M19A1 ammo can with desiccant packs) and observe strict Ground/ORM-D hazardous materials shipping and handling regulations.
Key Features
- 660gr MTAC Monolithic Solid Copper Projectile: Precision lathe-turned solid copper bullet eliminating jacket core variance, featuring drive bands for reduced bore friction and maximized flight stability.
- Extreme Velocity & Kinetic Energy: Propelled at 2,800 fps with roughly 11,489 ft-lbs of muzzle kinetic energy for ultra-flat trajectories and consistent supersonic performance at extreme ranges.
- Virgin Barrett Brass & Sealed Ignition: Premium reloadable brass cases paired with clean-burning, temperature-stable powders and sealed Boxer primers to guarantee smooth semi-auto and bolt cycling.
- 10-Round Precision Pack: Secure, compact 10-round box engineered for easy transport to the firing line, field staging, and match zeroing.
Product Specifications
- Brand: Barrett Firearms®
- Series / Load Line: Precision Ammo
- MPN / SKU: 19978 / 19978-Barrett
- UPC: 810021512112
- Caliber / Gauge: .50 BMG (12.7x99mm NATO)
- Grain Weight: 660 Grain (42.77 g)
- Bullet / Projectile Type: MTAC Solid Copper (Monolithic Target)
- Muzzle Velocity: 2,800 fps
- Muzzle Energy: 11,489 ft-lbs
- Casing Material: Virgin Reloadable Brass
- Primer Type: Boxer - Non-Corrosive / Sealed
- Reloadable: Yes
- Corrosive: No
- Quantity / Round Count: 10 Rounds per Box
- Country of Origin: United States
