Winchester 5.56x45mm NATO, FMJ, 55 Grain, 200 Rounds
- Item Number: 133517
- MFG Number: Q3131A/AK
- Caliber: 5.56x45mm NATO
- Bullet Weight: 55 grain
- Bullet Style: FMJ
- Muzzle Velocity: 3,270 FPS
- Muzzle Energy: 1,306 ft.-lbs.
- Case: Brass
- Corrosive: No
- Rounds: 200
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PLEASE NOTE: While the 5.56x45mm round will fit in a .223 Remington chamber, 5.56 is a military round that is loaded to a higher pressure than its .223 counterpart, and is therefore not recommended for use in rifles chambered for .223.