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Gentlemens:

Any insight you gentlemen can offer would be most welcome. If anyone has a falling block .577 I sure would be interested to learn the barrel shank diameter. Also, if anyone has a BP double rifle it would be instructive to learn the wall thickness of the chambers. Any information would be greatly appreciated.

Thanks!

Glenn

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hi glenn

my a. henry 20/577 has a barrel wall thickness of 5,4 mm, the load this thickness should contain is 7 drams of black with a 560 grains head over it

best regards

peter

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