Russ,
My early 10 gauge Parker hammer guns have .804 bores! I did not have a bore gauge and mic'd the muzzel on the #2 frame lifter with about 30" barrels at about .774 and thought the gun was choked cyl and cyl. I shot the gun at the Southern a few years ago and while there Jent Mitchell measured the barrels and solved the mystery. I have measured the barrel lenghts on these Parkers, but can't recall exactly. I do think some vary from 1/16 to 1/4 of an inch.
Harry
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