My PCP's are very quiet without moderators but you have to use heavy enough pellets to make sure they don't shoot supersonic. They certainly aren't louder than the RWS I got rid of because of the noise. With moderators they are not as loud a cough. 5 of the 6 wear Hawkes and 1 has a Zeiss. There are no heavy springs banging around and no recoil for a scope to deal with.
