The lightest of the subsonic loads tested, it was also the least accurate—unusual for machined bullets from Lehigh Defense. According to Lehigh, this bullet needs a fast twist rate to stabilize, and it shot better from the AAC carbine's 1:7-inch-twist barrel. Cycling reliability was less than 50 percent.
As far as I know, Lehigh Defense is the only manufacturer of expanding, subsonic .308-caliber projectiles. The three petals that break off this bullet peel away after about 3 inches of penetration, while the bullet's base drives to about 25 inches.