Description
The Barrett 50 BMG 660gr Solid Copper Precision load is Barrett factory ammunition for the 50 BMG. Each cartridge uses Barrett headstamped brass, non-corrosive powder and primers, and a 660 grain solid copper projectile. Distributor data lists about 2,800 fps and a G1 ballistic coefficient of 0.777. Each box holds 10 rounds.

Inside the Barrett 50 BMG 660gr Solid Copper
A monolithic copper bullet is machined or formed from a single piece of copper alloy rather than a lead core inside a jacket. That construction delivers very consistent weight and concentricity, which helps accuracy, and it makes the load lead-free. For ranges and jurisdictions that restrict lead, a lead-free 50 cal option is valuable.
Barrett is the company most associated with the 50 BMG, and it loads this ammunition on modern equipment in its own headstamped brass. The cases are boxer primed and reloadable, which matters to the many 50 BMG shooters who handload to control cost.
A G1 ballistic coefficient of 0.777 is high for a solid bullet, supporting long range target work where wind drift and retained velocity are everything.
Using the Barrett 50 BMG 660gr Solid Copper
As 50 BMG precision ammo, this load is suited to bolt-action and semi-automatic 50 BMG rifles in good condition, but always follow your rifle maker guidance on compatible ammunition. Solid copper bullets can produce different pressures than lead-core bullets of the same weight, so confirm function and look for pressure signs when switching loads.
The 50 BMG produces heavy recoil and extreme muzzle blast, especially with the large muzzle brakes common on these rifles. Double hearing protection is strongly recommended for the shooter and anyone nearby, and many ranges have specific rules for .50 caliber rifles.
Legal note: a few jurisdictions restrict possession of 50 BMG rifles or ammunition, including California. Check your state and local laws before ordering.
Barrett 50 BMG 660gr Solid Copper Specifications
- Brand: Barrett
- Line: Precision
- Part Number: 19978
- Caliber: 50 BMG
- Bullet: 660 grain solid copper (lead-free)
- Velocity: approx. 2,800 fps (distributor data)
- Ballistic Coefficient: 0.777 G1
- Case: Barrett headstamped brass, boxer primed, reloadable
- Rounds per Box: 10
- Country of Origin: USA
- UPC: 810021512112
Who Should Buy the Barrett 50 BMG 660gr Solid Copper
Owners of 50 BMG rifles who want consistent factory match-style ammunition in quality brass, without lead, will find the Barrett 50 BMG 660gr Solid Copper a strong choice for long range steel and precision shooting.
The trade-off is cost. Premium 50 BMG ammunition is expensive per round, and many shooters handload or reserve factory precision ammunition for matches and load development benchmarks.
Browse the MAG5 Firearms ammunition selection for more precision rifle loads, and visit Barrett for product information.
Store ammunition in a cool, dry place and keep it shaded at the range. Temperature swings change velocity and point of impact at long distance.
Who it is for: 50 BMG rifle owners who want lead-free, consistent precision ammunition for long range target shooting. Follow all federal, state and local laws when purchasing and transporting this ammunition.






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