Ballistics question for surplus optic
#8
Welcome aboard!

We used to have those M145 MGOs on our M240s. They’re calibrated for high hit probability with short bursts of fire.

You just have to work out your drop and correlate it to the reticle stadia, depending on the conditions where you are. With 123gr ELD-M from a 20” Grendel, the close range drop stadia will be easy to match up.

The 10m zero probably won’t work because the Elcan was mounted on top of the feed tray cover on a rail on the M240B, with pretty significant height over bore.

Zeroing it will be your first challenge.
NRA Basic, Pistol, Rifle, Shotgun, RSO

CCW, CQM, DM, Long Range Rifle Instructor

6.5 Grendel Reloading Handbooks & chamber brushes can be found here:

www.AR15buildbox.com
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Ballistics question for surplus optic - by LRRPF52 - 07-28-2022, 04:21 PM
Ballistics question for surplus optic - by LR1955 - 07-29-2022, 09:32 PM

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