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Winchester

5.56 NATO - Winchester 55 Grain M193 FMJ (WM193K) - 500 Round case

Product Code : 0208922018800000

$0.46 per round
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5.56 NATO - Winchester 55 Grain M193 FMJ (WM193K) - 500 Round case

Caliber: 5.56×45 mm NATO

Bullet Type: Full Metal Jacket (FMJ), M193 specification

Bullet Weight: 55 grains (3.56 g)

Winchester’s M193 5.56 NATO load features a 55 gr FMJ bullet designed for reliable feeding, consistent accuracy, and dependable function in AR-15 and other 5.56 NATO-chambered rifles. Suitable for training, target shooting, and high-volume range use.

Ballistic Data
Muzzle Velocity: ~3,240 fps (988 m/s)
Muzzle Energy: ~1,282 ft·lb (1,738 J)

Typical performance from a 20″ test barrel:

Range Velocity (fps) Energy (ft·lb) Trajectory Drop*
0 yd ~3,240 fps ~1,282 ft·lb
100 yd ~2,850 fps ~993 ft·lb ≈ −1.5″ (−3.8 cm)
300 yd ~2,400 fps ~703 ft·lb ≈ −12.1″ (−30.7 cm)

 

*Trajectory drop is approximate, assuming a 100 yd zero. Actual results may vary by rifle and conditions.

Technical Specs
Primer Type: Boxer, non-corrosive
Case: Brass, reloadable
Bullet Construction: Lead core with copper jacket
Winchester SKU: WM193K

Determined at checkout.

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