Welcome to the new PGCA Forum! As well, since it
is new - please read the following:
This is a new forum - so you must REGISTER to this Forum before posting;
If you are not a PGCA Member, we do not allow posts selling, offering or brokering firearms and/or parts; and You MUST REGISTER your REAL FIRST and LAST NAME as your login name.
To register: Click here..................
If you are registered to the forum and keep getting logged
out: Please
Click Here...
Welcome & enjoy!
To read the Posts, Messages & Threads in the PGCA Forum, you must be REGISTERED and LOGGED INTO your account! To Register, as a New User please see the Registration Link Above. If you are registered, but not Logged In, please Log in with your account Username and Password found on this page to the top right.
I believe it was intended to be a different nomenclature for the same thing.
The constriction of my 20 and 28-ga. Q1/Q2 choked Parker Repro barrels correspond to the SK1/SK2 constrictions of virtually all of the manufacturers choke charts that I've seen. I have not measured a .410, 16 or 12-ga. Repro's Q1/Q2 chokes to know if that holds true for them, too; but I suspect it does.
Threaded Mode