SDH, The tuning fork gauges, as you call them, can be extremely accurate if used correctly. Many don't understand how to use them. They may be more accurate than the vertical Galazan type [I have one] if one does not suspend the barrels on a pulley and string from the ceiling. One mistake in buying a nice double with thin barrels at a gun show will pay for many of any type of gauges. The "tuning fork" gauges will measure from 28 ga to 4 ga. or any larger gauge without changing anything.

Last edited by Daryl Hallquist; 02/20/12 10:10 PM.