Originally Posted by Jim in Idaho
These mufflers on a Swiss rifle range apparently reduce noise levels to 20 db which is pretty quiet.

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To put that into context, during a recent test of sound moderators on full bore rifles using "normal" ammo (ie not sub sonic) the sound reduction measured from 21db to 26db depend on the effectiveness of the mod concerned.

Last edited by Pete E; 05/14/15.

Men of Harlech[Linked Image]