Range Report: Subsonic 223

Discussion in 'Range Report' started by Lee, Nov 13, 2010.

  1. Lee

    Lee New Member

    A friend has a suppressed AR-15 and wanted some assistance in working up a subsonic load to see how well his suppressor worked.
    GUN: Bushmaster AR-15 with 16&1/2 inch barrel fitted with GemTech M-4-96D suppressor
    BULLET:69gr Sierra HPBT-Match coated with Danzac
    PRIMER: Remington 6&1/2 Small Rifle
    POWDER: 5.9gr IMR SR4759
    AVG. VELOCITY: 1020
    Sd. and ES good only if gun lifted with each shot to place powder at back of cartridge
    Suppression excellent
    No attempt to measure accuracy as my friend only was interested in the noise suppression