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#572501 05/20/20 06:33 PM
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I recently bought an 1885 10 bore from a seller who told me that it has 3" chambers according to his chamber gauge. I don't have a gauge, but an unfired 3.5" 10 bore brass shell leaves 1/4" protruding from the breech, suggesting that the chambers may in fact be 3.25". This test worked when I tried it on a 2.5" 12 bore: a 2.75" brass shell only goes in 2.5".

Is this a valid test of chamber length?

LGF #572502 05/20/20 07:09 PM
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Doubtful. Just measure it. Roll a piece of paper and insert. Mark the place it stops and use ruler to see how deep the chamber is...Geo

LGF #572503 05/20/20 07:25 PM
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No. It is not.

I like and use the machinist's scale method. Very repeatable with a little practice. George's method works too.

SRH


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Thanks for the quick responses.

I have tried both those methods and can't get consistent results. I clearly don't know what I am doing but will try again.

LGF #572506 05/20/20 08:34 PM
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Why don't you buy a chamber gauge for $45...never be in the dark again...


https://connecticutshotgun.co/handy-model-chamber-length-and-choke-gauge/


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Then I would need to buy more guns to justify it and I can't afford them!

LGF #572512 05/20/20 11:49 PM
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Yeah? What are your eyes and/or fingers worth?

How about this? I have the chamber gauge set I pictured above, the 10 gauge brass is 0.82" or 21.2mm wide. Make yourself one out of some old metal sheet and see how far in it goes.


My problem lies in reconciling my gross habits with my net income.
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LGF #572516 05/21/20 08:48 AM
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LGF,
I think it is doubtful that your chamber is 3", I think the standard, at the time, was 2 7/8" or shorter. If it is 2 7/8", it would be pretty easy to mis-measure and think it is 3".I think Buffalo Arms( no connection) may have shells loaded for old guns.
Mike

LGF #572517 05/21/20 09:00 AM
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Originally Posted By: LGF
Then I would need to buy more guns to justify it and I can't afford them!


No need to buy a chamber gauge for $45. Two doublegun friends here in town just come over to my house whenever they buy a new gun and use my Galazan gauge. Find a friend locally who has one and you can usually pick up a free beer and political advice in addition to getting the accurate measurement...Geo

LGF #572518 05/21/20 09:40 AM
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I can see where owning a good gauge could become expensive... smile


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BrentD, (Professor - just for Stan)

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