Gunsmithing measuring the bolt raceway

[ArmyJerry]

Trying to order the PTG one pievce bolt they are asking for raceway measurement. where do i measure from?

 

[Wannashootit]

Pin Gauges,, inserted in the front and rear of the action as there is typically a variation. Be sure to allow clearance for coating if it's being done.

http://pacifictoolandgauge.com/mater...r-ptg-bolt.pdf