The HK 770, a hunting rifle 7.62×51mm NATO/.308 Winchester variant of the Heckler & Koch SL7, lacked the wooden handguard of the SL7 and was equipped with a longer
barrel with integral flash hider/compensator slots at the end of the barrel,
open rear leaf sights, and sporting-style
buttstock. The HK 940, a hunting rifle long action variant of the Heckler & Koch SL7, designed for using cartridges exceeding the 7.62×51mm NATO/.308 Winchester overall length like the
.30-06 Springfield or
7×64mm and lacked the wooden handguard of the SL7 and was equipped with a longer
barrel with integral flash hider/compensator slots at the end of the barrel,
open rear leaf sights, and sporting-style
buttstock. The
Heckler & Koch SL6 is similar to the Heckler & Koch SL7, but is chambered for
5.56×45mm NATO. ==References==