Robert Louis Company Boremaster Bore & Wall Thickness Gauge

When examining an old shotgun or looking at a newer one for some modifications, there are many questions that aren’t easily answered. Is your bore in-spec? What kind of barrel diameter are you looking at? What are the choke lengths? What’s the barrel-wall thickness? Now, with the BoreMaster Bore & Wall Thickness Gauge, shotgunners can easily answer all these questions. The Thickness Gauge provides users with an accurate reading of the barrel-wall thickness measured from the muzzle down the length of the barrel up to 6 inches from the muzzle. With this measurement, users can determine whether or not their bore meets safety specs and can be shot. Another use for the Bo Mfg: Robert Louis Company