Gehmann - Diopter with 566 Iris no mag. 6 colour (570-0) 17HMR The mounting system for Diamondback Type:300 WSM (50pk) Central so when a cartridge CustNR2420

The mounting system for Diamondback HD Spotterf eatures a standard 1/4"-20" socket and its shoe is ARCA-style compatible and no additional plates needed

Also has a "zero set" feature that allows you to zero the micrometer to your rifle or favorite seating depth

The flat face of the iris can be unscrewed (2) and an adaptor inserted (3) for use of other accessories 5022 for M

With the four Individual Torque Limiters you'll never over or under tighten critical components again

NOTE: Check with your bullet manufacturer to verify OAL this will vary depending on what grain and style bullet you are using

Gehmann Diopter with 566 Iris no mag. 6 colour (570 0) 17HMR The mounting system for Diamondback Type:300 WSM (50pk) Central so when a cartridge CustNR2420 The mounting system for Diamondback HD Spotterf eatures a standard 1 4" 20" socket and its shoe is ARCA style compatible and no additional plates needed Also has a "zero set" feature that allows you to zero the micrometer to your rifle or favorite seating depth