I stumbled on a nice Ithaca flues

[James Doolittle]

Update...chambers are measured at 2 3/4". The load was found in the Hercules 1992 powder/load catalog. Gotta love those old booklets that were published by the powder companies. Fiocchi hull, 19.5 grs of Unique, PG16 wad, 1 oz of lead 7.5's. 7900 lup, 1150 fps. This is the lowest pressure load I could find.

[James Doolittle]

Does this make it a #2 Pigeon grade?

[James Doolittle]

Then I have to ask, Is this a #2 grade pigeon gun?

[Mike of the Mountain]

John Davis posted some 16g loads tested by either Tom Armbrust or BP. 2 3/4" hulls, 1 oz and Longshot powder and were in the 6000 PSI range or less. I've been using those loads for clays and hunting and they do shoot great in my Parkers and Lefevers.

[James Doolittle]

So my #2 Flues was made in 1913 with the Krupp barrels, would it be a Krupp Pigeon?