Joe, I am trying to decide whether to take my Belgian hammer 20 or the 16 on my grouse trip. Both have 30" barrels, the 20 is a real grouse slayer. The barrels are London Twist.
Robin had asked how one could determine whether a gun was hot blued or not,
I would be very interested in that answer.

Harold, beautiful hammer gun and grouse. If you have the 20, you certainly can’t go wrong with it. I’m looking for a 20 bore hammer gun to go with the 16. I’m not sure either on the bluing. Obviously, hot blued barrels would have a shiny, mirror like appearance, at least when first finished. On my gun, I really can’t tell. The barrels have mostly turned a nice plumb color. I’ll let you know how I do with it on quail.