The Galazan vertical gauge is the one to buy. There is no question on its accuracy. Too heavy to take to shows? EZ solution, you keep it in the car, leave driver's license or something else of value with vendor that owns the gun, and take the barrels only out to the car and measure them. Unless you're an inveterate tire kicker, how many guns are you going to measure at a show? Or mayhaps you like to impress people that you're smart enough to own a wall gauge and like to show off your portable one? Much ado is made of walking gun show rows with portable wall gauge but try it some time. It's a hassle to carry around and when you rest it on adjacent table to pick up a gun the vendor there complains that you're taking up his table space and you might scratch his guns on display. Or try walking with the gauge in one hand and a bag of goodies you bought in the other. Portability of these tuning fork type gauges is good in theory only. Just get the Galazan and forget about writing up long tomes to convince others that your portable gauge is accurate and repeatable and is so, so very EZ to use at shows.
