Out of stock
Magtech CBC 5.56mm NATO 77gr OTM HPBT Ammunition 50rds - CBC556C
Out of stock

Magtech CBC 5.56mm NATO 77gr OTM HPBT Ammunition 50rds - CBC556C

SKU 50278
Brand Magtech
Price Per Round $0.61
All California ammunition orders need to be shipped to an FFL and will be charged a 25% restocking Fee. More CA Info
If you live in AK, CA, CT, DC, HI, IL, MA, MD, NJ, or NY, please read our ammo shipping restrictions before placing your order.
Handling firearms or firearms parts can expose you to lead and other petroleum products known to the State of California to cause cancer, birth defects, or other reproductive harm. Wash hands thoroughly after handling. For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).

Product Details


  • Type: Sport Shooting
  • Bullet Style: Sierra Cannelured OTM HPBT
  • Caliber/Gauge: 5.56x45mm NATO
  • Bullet Weight: 77 grain
  • Muzzle Energy: 1331 lb/ft
  • Muzzle Velocity: 2790 fps
  • Case Material: Brass
  • Packaging Quantity: 50/Box, 1000/Case
  • Ballistic Coefficient: 0.362
  • Test Barrel Length: 20"
  • Primer Type: Small Rifle Primer #7-1/2


Reliability. Performance. Value. They're the three commandments when it comes to Sport Shooting. When you pull the trigger, you want results... every time. That's why Magtech rifle ammunition is ideal for all your recreational shooting needs. Each cartridge is assembled using only the highest quality components and rigorous quality control is exercised in every stage of the manufacturing process. Sierra MatchKing HPBT projectiles are widely accepted as the most accurate projectiles on the market. Magtech is proud to offer 308 Win (7.62mm) and 223 REM (5.56mm) ammunition loaded with Sierra MatchKings.


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