Causes of OVERPRESSURE

[Coyote Shadow Tracker]

I'm talking about "chamber length gauges" sold by Brownells/ Sinclair that are used to measure & determine your max case length as determined by measuring your chamber.
Sounds like you are measuring your brass with a go/ no go gauge, correct?

You can also make you own "Chamber Length Gauge" if you need or want to check. Less expensive (even though the Sinclair's are only about $6) and more accurate for tight chambers.

Do-It-Yourself Chamber Length Gauge « Daily Bulletin

Here is a clever DIY tool we learned about from Frank Shuster, a Forum member, who, sadly, passed away in 2015. Frank was a very knowledgeable shooter who was always willing to help others. Here is one of Frank's smart inventions. He devised a way to measure the length of a rifle's chamber using...

bulletin.accurateshooter.com

 

[milboltnut]

I'm talking about "chamber length gauges" sold by Brownells/ Sinclair that are used to measure & determine your max case length as determined by measuring your chamber.
Sounds like you are measuring your brass with a go/ no go gauge, correct?

LMAO, no. How would you do that ? I think you're thinking too much.

 

[MagnumManiac]

I don't believe for a second that moisture, oil or solvent causes excessive pressure.
Have witnessed grease lathered cartridges fire and extract with no I'll effects…not even an ejector mark, which I believed for decades would happen, not so it turned out.
It was a very interesting experiment and proved that it was a myth put out by the military to make sure that the riflemen kept there guns CLEAN.

Cheers.