Edgar, with a straight line (tapered) cutter how did they arrive at the 'ogee' at the beginning and at the end of the length of the choke taper? Was the ogee the result of the final hone and polish?
I recall reading that Parkers produced in Illion did not have the ogee that the Parker Bros. craftsmen finished the chokes with... I wonder why not and if the transition from the cylinder tube directly to the choke cone would affect the pattern by the possibility of more shot pellets being deformed?
I have a 12 bore with .041" and .042" of constriction that is certainly tighter than the .029" constriction suggested as full choke... so, what degree of choke should I call it?
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"I'm a Setter man.
Not because I think they're better than the other breeds,
but because I'm a romantic - stuck on tradition - and to me, a Setter just "belongs" in the grouse picture."
George King, "That's Ruff", 2010 - a timeless classic.
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