I saw a discussion on another web site about shotgun plugs and a guy who identified himself as a federal warden writing tickets for shotgun plug violations. Point of it was that someone who had a shotgun plugged for the magazine to hold a maximum of two 3 1/2 inch 12 ga could be in violation if the warden's trusty gauge showed it could hold more than two 2 3/4 inch shells. Discussion went on that some thought rules ment two three inch shells. Another thought if you, or any of the people you were hunting with had the shorter shells you would be in violation, but if you all had the longer shells you were ok. I had never seen anything like this and tried to do the math. Two 3 1/2 inch shells = 7 inches. Three 2 3/4 = 8 1/4. Of course this is fired length, not loaded, but the comparison of 1 1/4 inch should be same. Shotguns I have used always had a little extra space after the two rounds were loaded, but never enough room for a third shell. I guess depending on the plug length and what shells you had you could have a problem.
Then of course there are 12 ga shells much shorter than 2 3/4 like the little Mexican ones sold a few years ago or even 2 1/2 inch. I just never gave anythought to this if a shotgun had the factory plug you were good to go.
Then of course there are 12 ga shells much shorter than 2 3/4 like the little Mexican ones sold a few years ago or even 2 1/2 inch. I just never gave anythought to this if a shotgun had the factory plug you were good to go.