Thread: Barrel length vs suppressor length

Has anyone seen or done any research into whether it’s better to have an extra inch of barrel or an extra inch of suppressor forward of the muzzle for best noise reduction?

It has been proven that more suppressor in front of the muzzle suppresses noise better, but if you wanted a ‘fixed’ total length of barrel plus suppressor, are you better to go 18” barrel and 6 baffles? Or 20” barrel and 4 baffles?

Obviously there’s a velocity difference, but not a consideration at this stage. Just the noise