I recently traded into a nice Browning Twelvette Double Auto. It came with three Briley choke tubes marked Skeet II, SKT (with 725 on a line below the SKT) and SF. I perused the Briley web site and about the only thing that it told me is the SKT is the abbreviation for "Skeet". Can anyone tell me what choke constrictions I have? Thanks for any help that you can provide.

Skt is about .003 to .005”, Skt II is about .012 to .015”, and I expect SF is what today is known as light full, which would be about .031 to .033”.

I hope this is useful.

Thanks! That helps a lot.