H.S. Undertaker .695 choke works the best with Winchester Supreme 2 and 1/4oz #4 loads using my Mossberg 835.

The Lohman Long Shot turkey choke seems to work the best with Federal Premium 2 and 1/4oz #5 loads. I can get 90% patterns with this setup and load.

Here's a picture of the Lohman tube.

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I can get 90% patterns with the Federal Premium 2 and 1/4oz #6 loads using a Carlson's .675 choke tube.