Range Report: Subsonic 223
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
No attempt to measure accuracy as my friend only was interested in the noise suppression
An armed society is a polite society.