Thread pattern

[Brutus]

Does anyone know the latest thread form for newer M37 Ithaca ribbed barrel intermediate position?
Specifically Ithaca Waterfowl and M37 28 gauge?

 

[rembolt]

This is what I can find with google . Win choke is the same as Browning Invector .
Ithaca
12 Gauge - Ithaca Plus, Tru-Choke, WinChoke
20 Gauge - Ithaca Plus, Tru-Choke, WinChoke
28 Gauge - Ithaca Plus

 

[Brutus]

Sir. I left out very important specifics. Sorry.
Folks. I meant the thread pattern for the bead. The mid barrel bead position that's there on the raised rib barrel on these newer factory M37s.

Again I apologize rembolt.

 

[brybenn]

Makes alot more sense now about the rib and the word intermediate lol
Sorry I can not help but the extra info does make the question make sense

 

[struff55]

Thread pitch

 

[a j cave]

I’d call Brownells.

 

[struff55]

Being American it should be 3/56 for the center bead