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  2. Enlisted Performance Report - Wikipedia

    en.wikipedia.org/wiki/Enlisted_Performance_Report

    Enlisted Performance Report. An Enlisted Performance Report ( EPR) is an evaluation form used by the United States Air Force. Instructions for constructing an EPR appear in chapter 3 of Air Force Instruction 36-2406: Officer and Enlisted Evaluation Systems. The EPR replaced the Airman Performance Report (APR) in the late 1980s.

  3. United States Army Test and Evaluation Command - Wikipedia

    en.wikipedia.org/wiki/United_States_Army_Test...

    by the Airborne and. Special Operations. Test Directorate (left) and Airborne Test. Force (right) The U.S. Army Test and Evaluation Command, or ATEC, is a direct reporting unit of the United States Army responsible for developmental testing, independent operational testing, independent evaluations, assessments, and experiments of Army equipment.

  4. 5.56×45mm NATO - Wikipedia

    en.wikipedia.org/wiki/5.56×45mm_NATO

    The 5.56×45mm NATO standard SS109/M855 cartridge was designed for maximum performance when fired from a 508 mm (20.0 in) long barrel, as was the original 5.56 mm M193 cartridge. Experiments with longer length barrels up to 610 mm (24.0 in) resulted in no improvement or a decrease in muzzle velocities for the SS109/M855 cartridge.

  5. Next Generation Squad Weapon - Wikipedia

    en.wikipedia.org/wiki/Next_Generation_Squad_Weapon

    A U.S. Army graphic detailing the competitors for the program as of December 2020. The Next Generation Squad Weapon (NGSW) program is a United States military program created in 2017 by the U.S. Army to replace the 5.56mm M4 carbine, the M249 SAW light machine gun, and the 7.62mm M240 machine gun, with a common system of 6.8mm cartridges and to develop small arms fire-control systems for the ...

  6. M1 carbine - Wikipedia

    en.wikipedia.org/wiki/M1_carbine

    While carbine bullets would easily penetrate the front and back of steel helmets, as well as the body armor used by Japanese forces of the era, reports of the carbine's failure to stop enemy soldiers, sometimes after multiple hits, appeared in individual after-action reports, postwar evaluations, and service histories of both the U.S. Army and ...

  7. XM7 rifle - Wikipedia

    en.wikipedia.org/wiki/XM7_rifle

    XM7 rifle. The XM7, previously known as the XM5, is the U.S. Army variant of the SIG MCX Spear, a 6.8×51mm (.277 in), gas-operated, magazine -fed, assault rifle [1] designed by SIG Sauer for the Next Generation Squad Weapon Program in 2022 to replace the M4 carbine. The XM7 features a free-floating reinforced M-LOK handguard for direct ...

  8. .308 Winchester - Wikipedia

    en.wikipedia.org/wiki/.308_Winchester

    2,510 ft/s (770 m/s) 2,588 ft⋅lbf (3,509 J) Test barrel length: 24 in (26 in for Lapua) [1] The .308 Winchester is a smokeless powder rimless bottlenecked rifle cartridge widely used for hunting, target shooting, police, military, and personal protection applications globally. It is similar, but not identical, to the 7.62×51mm NATO cartridge.

  9. M982 Excalibur - Wikipedia

    en.wikipedia.org/wiki/M982_Excalibur

    GPS, inertial navigation. Accuracy. 4 m (13 ft) CEP. The M982 Excalibur (previously XM982) is a 155 mm extended-range guided artillery shell developed in a collaborative effort between the U.S. Army Research Laboratory (ARL) and the United States Army Armament Research, Development and Engineering Center (ARDEC). [6]