I've never heard of one Jim though I suspect there was a standard that a barrel filer had to adhere to in addition to maintaining a safe wall thickness.
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__________________
"I'm a Setter man.
Not because I think they're better than the other breeds,
but because I'm a romantic - stuck on tradition - and to me, a Setter just "belongs" in the grouse picture."
George King, "That's Ruff", 2010 - a timeless classic.
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Barrel Weight by Lenght?
Linear Mode
