Thought this was an interesting article. I didn't know about the phenomena of "First Round Pop", but then again I've never fired a suppressed firearm.
https://www.ammunitiontogo.com/lodge/silencer-guide-with-decibel-level-testing/#testing
This project is a massive look at silencers with testing data that shows exactly what difference a suppressed firearm can make on your sound levels while shooting.
https://www.ammunitiontogo.com/lodge/silencer-guide-with-decibel-level-testing/#testing