Trijicon is now making the ACOG 3×30 with a special 300 Blackout reticle.  The new reticle is designed to be sighted in with supersonic ammo, with lines in the reticle representing various hold over points for known distances.  Two small triangles are the aiming points for subsonic ammo at 50 and 100 meters.  Sighting in the optic and using the marked hold over points on the reticle is obviously dependent on ammo selection and barrel length.

The reticle is illuminated via fiber optics and tritium like other ACOG sights.  MSRP is $1,257 and the company’s website estimates a 12 week wait.