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.
Charlie;
The reduction in bore diameter is what gives this gun a full choke. A 16ga. bore is .662, an 18ga. is .637. The difference is .025 which is a fullchoke in a 20ga. The same principle applies to any gauge. Take the 12 ga. for example. Nominal bore dia.= .729, a constriction of .036 would give you a diameter for the choke of .693 which is the diameter for a 14ga. The Wm. Ford 20ga. chokes are parallel for the entire length of the choke (3.75").
Hope this helps.
Daryl
Hybrid Mode