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Switching to the 5.56 mm green bullet, the M855A1 Enhanced Performance Round, or EPR, in 2010 has eliminated nearly 2,000 tons of lead from the waste stream. [15] U.S. Army representatives at a 2013 House Armed Services Committee hearing have credited the 5.56mm M855A1 Enhanced Performance Round "close to" those of a 7.62 mm in its performance ...
The steel-tip penetrator of the M855A1 is noticeably separated from the jacket of the bullet and can spin, but this is part of the design and does not affect performance. The M855A1 costs only 5 cents more per round than the M855. [140] The M855A1 bullet has a 1 ⁄ 8 in (3.2 mm) greater length than the SS109/M855. [141]
61.8 (±1.5) grain 5.56x45mm NATO M855 at a velocity of 3115 ft/s (950 m/s). This is identical to the ballistic protection provided by NIJ RF1, with the addition of 5.56x45mm M855. This level has no equivalent in obsolete NIJ Standard-0101.06. [10] NIJ RF3.30-06 Springfield: This armor would protect against:
The differences are caused by the size and reflectivity of the flakes in the paint, and also by their orientation and the degree to which they are all oriented in the same direction. Historically, it was difficult to achieve an invisible repair if the paint was damaged because it is critical to reproduce the flop of the original surface as well ...
A new adjustable rear sight was added, allowing the rear sight to be dialed in for specific range settings between 300 and 800 meters to take full advantage of the ballistic characteristics of the SS109/M855 rounds and to allow windage adjustments without the need of a tool or cartridge [196] The flash suppressor was again modified, this time ...
Influenza is surging in the U.S., with doctor visits for flu symptoms at a 15-year high. Why is this flu season so bad? Doctors discuss flu trends and prevention.
The last time the Kansas City Chiefs beat the Philadelphia Eagles in the Super Bowl they wore white. Hoping for a similar outcome in Super Bowl LIX, the defending back-to-back champions will sport ...
There were also complaints about the ammunition used in testing. The competition began while the M855 round was in use. In June 2010, the M855A1 Enhanced Performance Round was fielded, and the competition began using the EPR in August. Army analysis found that the M855A1 may have contributed to lower than expected reliability performance.