"scotty"Shopping for my first PCP and this is very important to me. I'm glad you posted this.
There are decibel metering applications for the iPhone. Since lots of us have an iPhone, if we use the same application that would give us a good repeatable frame of reference. Then we could agree on a set distance from the gun in an open field for 2 more layers of consistency in measuring (No echo from a wall and the same distance from the muzzle) at a 45 degree angle, maybe 3 meters to the side and 3 meters in front of the muzzle and at the same height. I'm sure there must be similar applications for androids as well. While there may be differences in measurements from phone to phone and OS to OS, if each OS used the same app and measured from the same place then we would have a much more reliable frame of reference than opinion. I use one on my iPhone called Decibels. It was reviewed well by some audiophiles and while not perfect by any stretch, it's pretty good.