My thoughts, it is very possible that miller triggers could have been factor installed to new guns on request by the customer. But of course the cast majority of Parker guns with miller triggers in them were installed by miller. There would be no mistaking the difference in quality of install between the two.
Barrels were shorted by the factory on returns if requested.
A mid bead should be in the middle as a standard unless otherwise requested or desired.
And in order to make a choke tighter than it was, the barrel wold likely need to be backbored.
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B. Dudley
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