Very nice. Is it Belgian made? Choke and barrel length? I assume 28" FULL.
Darryl
25.5" improved mod. Belgian made. Pretty shot gun, swings and points like a dream!
They may call this a 26", but it measures 25.6".
On the browning manual, it says Full *, (imp mod *.), Mod **, imp cyl ***. There is a distinct plain punch mark after the asterisk. mikes @.597 ID. Full is .592.
What's the source and YEAR of your choke measurement? Mine are from Browning 1967 Magum specs. Maybe they changed the spec in different years. The asterisk is so faint and the dot appears to be a punch slip. I had to use an old Panasonic 30X light scope to even tell. It's enclosed in a horseshoe stamp or C with Ts crossed if you know what I mean, which I assume means choke. If it patterns for me I don't really care if it cylinder bore. If it's tight my gunsmith buddy is a master at the reamer and hone. This shotgun will be my boy's after me, so a collector piece it will never be.
A lifetime duck hunting buddy had the same gun as yours but it was choked FULL. When steel became mandated he (with my urging) had a good smith open the barrel to MOD. He had been missing a lot of inside 30 yard birds with the full. That gun threw the nicest most even patterns of steel #4's I have ever seen. With that gun he became in his words a better shooter than with lead shot and the full choke. I hunt with a lot of fixed choke guns. I have to say I think screw in chokes are over rated unless you are a turkey hunter, use heavy buck loads for big game (deer) or a competition card shooter (big in the USA) Your factory MOD is more desirable than a full by a long shot. It is a great choke for hunting partridge on the barrens. With steel it makes a very decent duck gun too.
Darryl
Hey Darryl I just left My buddy Terry the gunsmith >50 years. He said if I wanted to have screwin chokes in that fine shotgun I'd have to find someone else to do it! He agrees with you wholeheartedly. We'll pattern it over the weekend, hone it > .600 +/- until we get 80% @35 yards. That's what my 20 101 did and I shot that fairly well. 1 oz.Fed. in lead always patterned nice. Wish me luck!
What are you using it for
I would not touch it with a hone if you are going to fire steel shot at any time
I don't know why your smith of 50 years cannot do it unless he is not set up to do 20ga screw in's which many are not
Send it to briley they will have no problem
For me screw in chokes in vintage shotguns increase value, honing a barrel with a good mod choke decrease value
Cheers



























