How do you measure chamber length?

[Straight Shooter]

I know about measuring COAL but not chamber length.

 

[Carlos88]

Here ya go:

Sinclair Chamber Length Gage

Sinclair Chamber Length Gage https://www.brownells.com/reloading/measuring-tools/case-length-gauges/sinclair-chamber-length-gage/

www.brownells.com

 

[Straight Shooter]

Thank you.

 

[AZShooter]

video on how to do it