
It mics out at .311" - nice:

Attero red-dot mount:

The old Yugo barrel has to be replaced as it's severely worn; the install is going to be a bit of a pain as the gas-port needs to be drilled as well as the slot for the barrel-pin, but it has to be done. The Attero mount is an interesting concept that replaces the rear-sight, so I decided to try it.
After the rebarreling is done I'm going to take the rifle to a friend down in Ft Worth who will park/paint it.