Quote:
Originally Posted by David Lampman
Ok, then is there a explanation for these barrels measuring .720 at the choke end? Which is the I.D. of a improved choke. I mean if the barrels were cut wouldn't the bore measure .730 at the business end?
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Hi David,
Parker choke constrictions were often 4" long and something as much as 6" from start to muzzle. Cutting 3" off the subject barrels would likely leave about .010" constriction. If you do not agree then measure a couple hundred bores at every 1/4" and log those measurements into a spreadsheet as I have done.
Since you haven't measured the inside diameter you
DO NOT know what the choke constriction is. The bores could have been honed of reamed making the bore diameter larger than ~ .729". The constriction is the difference between the bore diameter and the muzzle diameter which creates a venturi effect. Shot squirts through a constricted muzzle much like water squirts through the end of a garden hose with constriction devise attached.
You might consider attending a SxS shoot in your area or asking if there are any PGCA members who love close enough to you for you to visit them. A member might be able to help you with your gun.
Your gun is an heirloom and thus should have value to you and your family. Enjoy it as part of something long ago passed on to another generation.
Good luck!
Mark