is the most quiet and accurate 5.56 x 45mm "sub-sonic" round
on the market, with a mil spec MIL-STD-1474D reading of 117dB
when used in conjunction with the Gemtech M4-QD suppressor
and an M4 Carbine, and 114 db with the SRT Hurricane on an
identical weapon. (reference: Paulson 1997 Silencer Trials,
Report BR-71). Other attributes: it is more accurate than M855
ammunition at 50 meters. Tumbles within 2-3" on soft tissue,
producing a large wound channel. It does not use fillers which
tend to clog suppressors. The ammunition intentionally does
not cycle the action, for the ultimate in quiet shooting. 63-gr.
Sierra Match projectile.