I have purchased a couple field grade guns and have a 20 ga Ideal grade project gun.
I just acquired a 12 ga regular frame gun with serial number 42342 30 inch extractor armor steel barrels.
Left bore seems pretty standard full with .730 bore consistent the length and .694 choke. It is also marked 4
Right bore is .723 bore along the length with .703 choke.
Choke lengths seem to be 3"ish
I have measured as many 12 ga bores as I can get my hands on and this is the 1st one with these dimensions. What is the choke of this side?
Also what is the relative benefits of getting a letter for just a plain 12 ga field gun?