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11078870
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Product Summary

Winchester Match Grade 5.56/223 Ammo 77 Grain Boat Tail Hollow Point 20rds MN# S556M



Winchester Match ammunition is loaded with the highest quality components under the strictest tolerances to produce consistent, accurate ammunition for competition shooters. Trusted by hunters for many years, Winchester ammunition is now becoming more available to the match shooter. Sierra MatchKing bullets have very think jackets and are held to exacting tolerances in diameter and weight. These hollow point boat tail bullets have a small meplat to produce a higher ballistic coefficient. Their accuracy has been acclaimed worldwide and they have been used to win more target competitions than all target bullets from other manufacturers combined.

Technical Information:

Caliber: 5.56x45 NATO
Bullet Weight: 77 Grains
Bullet Type: Sierra MatchKing Hollow Point Boat Tail
Case Type: Brass


Ballistics Information:

Muzzle Velocity: 2750 fps
Muzzle Energy: 1293 ft. lbs.

Caliber Dictionary

The Below Information Has Been Provided From Our Gun Caliber Dictionary And Is Meant For Informational Purposes Only. It Is Not Intended to Describe The Unique Specifications For This Ammunition.
The 5.56X45mm NATO cartridge was designed by James Sullivan, a member of Eugene Stoner's engineering team that developed both the M16 rifle and its original cartridge. The 5.56X45mm NATO was adopted by the U.S. military in 1964 and by NATO in 1980. With bullet diameter of .224-inch, the original M193 military cartridge used a 55-grain bullet at 3250 fps; the current M855A1 cartridge, developed by FN, uses a 62.5-grain bullet at 3020 fps, offering greater range and better penetration. The civilian version of the 5.56X45mm is 223 Remington; the cartridges are dimensionally identical but military chamber dimensions and specifications for military brass are different. It is considered safe to use 223 Remington ammo in a 5.56X45MM NATO chamber, but not a good idea to use 5.56X45mm ammo in a rifle specifically chambered for the 223 Remington. Although the stopping power of .22-caliber bullets remains controversial the 5.56X45mm has served well in now multiple generations of M16 rifles. — Craig Boddington

Specifications
Specification   Value
Quantity   20
Caliber   5.56mm Nato
Weight   77 Grain
BulletType   Hollow Point
     
MFG NO    S556M
SKU    11078870
UPC    020892220379
Manufacturer
Winchester
Phone:   618-258-2000
Email:  
Website:   http://www.winchester.com
Address:   427 North Shamrock Street
Alton, IL 62024
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