CYLINDER AND CYLINDER IN A LOT OF UNCUT LIFTERS
When looking at a lot of early lifters advertised for sale, I see continually the chokes are listed as cylinder and cylinder. And these are uncut guns, on the bigger frames like 2s (not light bird guns) with the barrel length matching the book.
When I measure some that have choke, they are overbored way past .729. I know Parker knew the bore of 12 gauge guns, and unaltered guns are right around .729 +/-. My question is did these guns leave the factory in the 1870s as cylinder and cylinder, and the ones from that period that are bored to .750 or more with choke were altered after they left Parker to put choke into them? Or is this how Parker put the choke into them, boring to .729 and then overboring for choke?
When did Parker finally start putting choke in barrels on a 100% basis unless specified not to, and sticking to the nominal 12 gauge bore size and boring for choke at the end? Thanks in advance for your help.
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