300 blackout headspace tools

[Jasonaspears]

Any have suggestions on what gauges to use in checking headspace on a new 300 blackout build I'm planning? Is there anyone in Sacramento area that has these?

[ar15barrels]

You can use 221 fireball, 300 whisper or 300 blackout gauges.
They are all the same.
PTG sells them.
I charge $10 to headspace check a barrel/bolt.

[Jasonaspears]

You can use 221 fireball, 300 whisper or 300 blackout gauges.
They are all the same.
PTG sells them.
I charge $10 to headspace check a barrel/bolt.

Thanks for the advice. What is PTG? I tried looking it up and came up with Piano Technicians Guild and Precision Task Group. I don't think those were what you were referencing though

[tujungatoes]

pacific tool and gauge.

[Jasonaspears]

Thanks guys I bought the go / no-go gauges from Brownells.