I cannot say I agree that the manson gauge is without merit. While it does not offer the quality of measurement that either the Hosford or Galazan gauges do, it does offer a much better than nothing solution. Further the dial can be swapped for a digital one from harbour freight.

I admit it is not prefect, but it is far better than flying blind and I expect it is close enough to rule out borderline guns

Michael Dittamo
Topeka, KS