I use 10 to 12 ga. GaugeMates in my Charles Daly hammergun. Gent Mitchell showed me, at the 2013 Southern SxS, how to grind away the rim of the GM except for that part that engages the extractor. Doing so allows me to shoot any brand of 12 ga. shell and not have to remove the GM each time. I can remove the empties by hand just as if I were shooting a 12 ga. gun. If you have ejectors,you would have to cover the breech with your hand each time you open the gun to prevent the GM from being thrown out.
JR

Last edited by John Roberts; 10/02/14 09:59 AM.

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