09-16-2014, 04:28 PM
That appears to be a Go/No Go gauge. Its not a 6.5 Grendel chamber drawing.
Here is a link to the drawings: http://www.65grendel.com/forum/showthrea...l-Drawings
Here is a link to the drawings: http://www.65grendel.com/forum/showthrea...l-Drawings
