I have 4 or 5,I might have one with a few nicks on it that i might let go...I look at them when I get home today.
I have been looking for a 20 gauge barrel for about 2 years talk about hard to find....
A 10ga is not over kill to say, I have an SBE, 10 O/U and had a SP10. I like my 10ga O/U for turkeys, ducks and geese. If you are a good shot you can kill all with a 3in 12 ga but if you need a little help with extra steel then the 10 ga is OK.
Heck I even shot dove this year with #6 10 ga turkey loads.....that was a blast!!!!
It all comes down to what feels good to you and what you can shoot accurately....