MCX LT 7.62x39 11.5"

semi-auto | United States

Caliber7.62×39mm
Barrel292 mm (11.5 in)
Weight3120 g (110.1 oz, manufacturer figure)
Capacity28 rounds
Actionsemi-auto
ManufacturerSIG
CountryUnited States

The MCX LT 7.62x39 11.5" is a semi-auto firearm chambered in 7.62×39mm, built by SIG in United States. From its 292 mm (11.5 in) barrel, Hornady 7.62x39 FMJ Frontier® (123 gr FMJ) leaves the muzzle at about 2473 fps (754 m/s), adjusted from the 415 mm test barrel the figure was measured in. Zeroed at 100 m, the bullet drops 196 mm by 200 m with 1213 J (895 ft-lb) left. At the muzzle that is enough to defeat Drywall, Plate Glass, Pine Wood and Brick, and not enough for AR500 Steel and Kevlar NIJ IIIA. It feeds from a 28-round magazine.

Trajectory — Hornady 7.62x39 FMJ Frontier®

Computed by the BallisticEngine engine for this barrel length, zeroed at 100 m, 15 °C, sea level, no wind.

DistanceDropVelocityEnergyTime
100 m0 mm648 m/s1674 J0.14 s
200 m-196 mm552 m/s1213 J0.31 s
300 m-718 mm466 m/s865 J0.51 s
500 m-3307 mm341 m/s464 J1.01 s

What can the MCX LT 7.62x39 11.5" penetrate?

Against a semi-infinite block of each material, with Hornady 7.62x39 FMJ Frontier® at the muzzle. The verdict compares the depth reached against a realistic barrier thickness.

MaterialVerdictDepth
Drywall (½")✓ Full penetration430 mm
Plate Glass (¼")✓ Full penetration29 mm
Pine Wood (1")✓ Full penetration354 mm
Brick (4")✓ Full penetration188 mm
AR500 Steel (⅜")✗ Stopped5 mm
Kevlar NIJ IIIA✗ Stopped10 mm
Run this load in the calculator →

Compatible ammunition

LoadMassVelocityTypeBC (G1)
Aguila Aguila 7.62×39mm 123gr FMJ123 gr2350 fps (716 m/s)FMJ0.275
Federal Federal American Eagle Rifle, 7.62x39, 124 Grain, Full Metal Jacket, 2350 fps124 gr2350 fps (716 m/s)FMJ0.274
Federal Federal Power-Shok Rifle, 7.62x39, 123 Grain, Jacketed Soft Point, 2350 fps123 gr2350 fps (716 m/s)SP0.274
Fiocchi Fiocchi 7.62x39mm Soviet 123gr Full Metal Jacket123 gr2375 fps (724 m/s)FMJ0.420
GECO GECO 7.62×39mm 124gr FMJ124 gr2330 fps (710 m/s)FMJ0.275
Hornady Hornady 7.62 x 39mm 123 gr HP Match™ American Gunner®123 gr2360 fps (719 m/s)BTHP0.260
Hornady Hornady 7.62X39 111 gr Monoflex® Hornady BLACK®111 gr2349 fps (716 m/s)SP0.175
Hornady Hornady 7.62x39 123 gr FMJ Frontier®123 gr2580 fps (786 m/s)FMJ0.266
Hornady Hornady 7.62x39 123 gr SST® Hornady BLACK®123 gr2360 fps (719 m/s)SP0.295
Hornady Hornady 7.62X39 255 gr Sub-X® Subsonic255 gr1050 fps (320 m/s)HP0.365
PMP PMP 7.62×39mm 123gr FMJ123 gr2350 fps (716 m/s)FMJ0.275
PPU PPU 7.62×39mm 123gr FMJ123 gr2350 fps (716 m/s)FMJ0.275
PPU PPU 7.62×39mm 123gr SP123 gr2350 fps (716 m/s)SP0.275
S&B S&B 124.0gr FMJ SB76239A123 gr2907 fps (886 m/s)FMJ0.183
S&B S&B 124.0gr SP SB76239B123 gr2943 fps (897 m/s)SP0.183
S&B S&B 200.0gr SB762SUBB201 gr762 fps (232 m/s)FMJ0.301
Winchester Winchester 7.62 x 39mm 123gr Extreme Point Deer Season XP123 gr2380 fps (725 m/s)HP0.304
Winchester Winchester 7.62 x 39mm 123gr Full Metal Jacket USA123 gr2355 fps (718 m/s)FMJ0.245
Winchester Winchester 7.62 x 39mm 123gr Power-Point Power-Point123 gr2365 fps (721 m/s)SP0.244

19 loads available in 7.62×39mm.

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