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 thin 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: 5.56×45 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.
Please Note:Â Â While the 5.56x45mm NATO will fit in a 223 Remington chamber, the 5.56 is a military round that runs at higher pressures than its 223 counterparts and is not recommended to be fired in a chamber marked specifically for 223 Remington.
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