1000 Rounds of 62gr FMJ M855 5.56x45 Ammo by Winchester USA

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Fast Facts
  • Product Type Ammo
  • Manufacturer Winchester
  • Condition New
  • Bullet Weight 62gr
  • Projectile Type Penetrator
  • Ammo Use Type Range Training
  • Casing Type Brass
  • Quantity 1000
  • Caliber 5.56x45
  • Manufacturer SKU WM855K
  • Primer Type Boxer
  • Muzzle Velocity (ft. per sec) 3060
  • Muzzle Energy (ft. pounds) 1289
  • Magnetic Yes
  • UPC Barcode 20892228498
  • Description
  • Reviews
  • Q & A
More Details About This Winchester 62gr Penetrator 5.56x45 Ammo
Want to try a new type of 5.56x45 ammunition in your AR-15? Check out Winchester’s M855 ammo – it is essentially the same stuff our troops would use, but it’s also great for casual target shooting!

This cartridge is loaded with a 62 grain FMJ, with a pure gilding metal jacket surrounding its core. Its core is made of two parts: a lead rear and a steel front. Its steel tip gives the bullet the wherewithal to penetrate sheet metal and other barriers.

A 62 grain bullet will do just fine when it is fired from a 1:7” barrel, but for the very best long-distance accuracy you want a 1:9” or 1:8” barrel. More importantly, this ammo’s penetrator cores will attract a magnet!

This non-corrosive and Boxer-primed ammo was produced for the commercial market and is not military surplus. But its new cases are military-grade, which means they weren’t polished up following their strengthening heat treatment.

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