Ring Bulge? WTF is that-- HoJo scrubbin' the bathtubs at the Guiding Light Shelter on Beale Street and the rusty ring gets bigger, no matter how much "elbow grease" our pal Joey applies?
Lead is softer than steel, and cannot be hardened, like mild or alloyed steels can. A tight choke may Fubar the ballistics of a lead slug, but a ring bulge at the muzzle- BS-- I have a 1937 era M12 field 30" Full- and I have shot beaucoup buckshot and heavy steel shot through it for 30 years or more, hand runnin' and the concentric bore and choke is still 100% as it was the day it left New Haven CT.--
A friend has a special order Remington M31 12 gauge pump- 24" solid rib Full choke- .730" NBD and .035" constriction- and he can put Breneke slugs into a pie plate at 75 yards- offhand, shot after shot- just uses the front bead sight- no "tricked-up" rifle style sights or red-dot aimpoint scopes either-
If I were lucky enough to own a German merkel- I'd shoot it just the way it was made-and not "open the chokes" the old Masters tooled into it--
