Choke constriction
The choke constriction chart from Hallowell & Co. shows 16 ga. IC between .006-.012 constriction what would a Parker 16 ga. IC measure in these terms? Looking to open up a Mod barrel and want to give the gunsmith some direction.
Last edited by Tom Jay; 08-10-2019 at 11:06 AM..
Reason: Correction
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