Where’s that guntech loser now?
He cannot grab a breath to talk like I am from laughing so much. Here I posted this else ware. Try to grasp it
11 pages and no one noticed he didnot install the proper 12ga ring and zero the gauge..Unbelievable how bad you guys what this to be real. No god dam wonder he got over .80
Who is the guy on the end of the dial. This is priceless. Notice he has nothing over the steel balls on the gauge head showing it was zero'd LOL
OMG. However look where he went to measure the bore not on the end of the barrel which was right too bad someone didnot show him how to use the gauge correctly. Show me the ring??? that he has to install in the pic to zero and all of these gauges use them to do it right and it is no where to be seen
This is turning into a gong show for the CSSA
Then he talks about back boring which didnot even start until 1987 like 25 years after that old girl was made
“The heads of our unit are marked with the gauge size, and the rings are marked with the corresponding diameters for easy recognition and use. Example: To measure a 12-gauge barrel, you would install the 12-gauge head on the shaft and slide the .700 ring over the three steel balls on the head. Next, set the dial on the indicator to 0. The 0 represents .700. Inserting the head into the muzzle end of the barrel past the choke area will give a reading larger than 0. For example, 29. This indicates a bore diameter of .729 which is the nominal size for American shotguns and many European shotguns as well. As you pull the head toward the muzzle, the dial will read a lower number and might even go past 0. For example, it might read 95. This would indicate a choke diameter of .695 and thus a Full choke. To determine the actual points of constriction the choke is imparting on the pattern, you would subtract .695 from .729 for a total of .034.
“The heads of our unit are marked with the gauge size, and the rings are marked with the corresponding diameters for easy recognition and use. Example: To measure a 12-gauge barrel, you would install the 12-gauge head on the shaft and slide the .700 ring over the three steel balls on the head. Next, set the dial on the indicator to 0. The 0 represents .700. Inserting the head into the muzzle end of the barrel past the choke area will give a reading larger than 0. For example, 29. This indicates a bore diameter of .729 which is the nominal size for American shotguns and many European shotguns as well. As you pull the head toward the muzzle, the dial will read a lower number and might even go past 0. For example, it might read 95. This would indicate a choke diameter of .695 and thus a Full choke. To determine the actual points of constriction the choke is imparting on the pattern, you would subtract .695 from .729 for a total of .034.