rooting through my hunting stuff and found a stardot extra full choke for invector.threads look a little ruff in one spot but should still work.any one want to trade .i have a 835 ulti now.also have carlson in invector .660.
(http://i284.photobucket.com/albums/ll9/jflanagan57/044.jpg)(http://i284.photobucket.com/albums/ll9/jflanagan57/044.jpg)