February 1957, the composite barrel of one of the test rifles failed during a round of harsh endurance testing. The rifle, No.1002, had fired 5,564 rounds during the testing program. The composite failure caused the barrel to burst in the middle of the handguard, the rifle’s operator was not injured.

https://www.americanrifleman.org/content/the-ar-10-story/#

  • @jimmydoreisaleftyEnglish
    7•11 months ago

    Cartridge

    • 7.62×51mm NATO
    • .308 Winchester
    • 6.5mm Creedmoor

    The ArmaLite AR-10 is a 7.62×51mm NATO battle rifle designed by Eugene Stoner in the late 1950s and manufactured by ArmaLite (then a division of the Fairchild Aircraft Corporation).

    https://en.wikipedia.org/wiki/ArmaLite_AR-10