Biggest frame size for a 20 ga?

[Bill Murphy]

Researcher, what is the story about Edwin Hedderly blowing up the DHE 20? I have not heard that story before. Hedderly's guns were bored for standard length shells and supposedly he shot normal length shell in them.

[Austin W Hogan]

Dave; John Truitt has it correctly expressed; frame size determines the weight between the hands, not the overall weight. I have an excel file showing this, but it does not fit the 19.5 kb limit.
With respect to the Parker catalog page shown in the last PP. It appears that the Parker catalog writers, and King's shop employees met only at the annual clambake, and then competed on opposing horseshoe teams. The table shows a 10 12 ga two barrel set gun with the 12 ga set up 6 oz lighter; it also shows a 7lb 1 oz 28 inch two frame 12 and a 7 lb 10 oz 28 inch one frame twelve, plus some 1 1/2 and 2 frame twelves lighter than 1 frame 16's.
I'll try to find a way to post those tables. They show barrel swamp, not frame size, to determine gun weight, as John says.
Best, Austin

[Austin W Hogan]

I think Kevin's brother was researching Hedderly in the 1990's, but never published the article. Hedderly was ahead of WW SuperX putting 8 gauge loads in 12's and 10 ga loads in 20's.

Best, Austin

[Austin W Hogan]

Dave ; I merged and printed the files, then scanned them for jpegs. The first shows two two barrel set guns; the 12 is 6 ounces lighter than the 10 on 56553; the upland barrel is much lighter on 73201; it makes up to a gun a half pound lighter than a 1 frame of the same barrel length. The difference in filing can be seen in the tabulated data.
The second shows two 1 1/2 frame twelves lighter than a 1 frame 16. The 6 lb 8 sixteen is a result of filing the swamp in the first four inches as the table shows.

Best, Austin