Rethreading for chokes will almost certainly require you to use Briley thin wall system or similar. There won't be enough beef in the barrel for standard pattern threads in all likelihood. You're probably money ahead at that point to just buy a shorter barrel and have it finished to match.
Not west tn but rose action sports in pembroke ky is highly spoke of. I just sent a Benelli Vinci barrel to him. It will be able to run Truchoke not the thin wall but the regular. Give him a call it's fairly close still. And for what it's worth I had a super x2 barrel threaded for winchoke and a new style a5 barrel threaded for remchoke so not always gotta be thin wall. And 160$ to have it done is a lot cheaper than some of these new barrels.
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