Obviously there is always going to be different noise output from different calibres and power levels but in the uk sub 12 airguns the fx crown is a cannon compared to some other sub 12 airguns.
the redwolf with its electronics and a decent mod is much quieter but even that is loud compared to this that I made fro my grandson
The noise as the bolt is cycled and a pellet tearing through a paper target at 30yards is more audible that the muzzle report.
My Benjamin marauder 177 field and target is slinging 10.5s at 850 fps and you cant even hear it from 10 feet away. Ive installed a great depinger and tuned it to use up all its air but seriously this is alot of power for litterally no sound.