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#593872 03/14/21 03:54 PM
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Sidelock
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Sidelock

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Hello All!

I was directed here from the parker collector forums. I purchased this Ed. Kettner hammer drilling at a local gunstore and was wondering about its history and what cartridges would be safe to shoot through it? The gun seems to have been refinished at some point recently. I'm not sure if the reciever is suppose to be blued or case hardened. Bores are in OK shape but do have pitting.

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Sidelock
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Sidelock

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The shotgun barrels was chambered for 16 gauge 2 9/16" shells and the rifle, based on what I can make out of the bore marking 118/35? is most likely a 9.3x72R.

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Sidelock
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Sidelock

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is there any easy way to find out around what time it was made? I downloaded the proof stamp log that i found posted here but its a little blurry

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Well, I do not see the term >>Nitro<< stamped anywhere so it would date between 1893 & 1912. I have seen that barrel stamp of >>RJ<< surmounted by a Crown on the lower rifled tube. I'll have to search. What stamps are on the frame?


Serbus,

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Too, the initials >>RW<< higher on the lower tube may point to a mechanic.

Serbus,

Raimey
rse

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Journeyman,
The crown W on the barrels shows were choked, but the amount of constriction is not shown. Since it has been re-blued and it is unknown what process was used, suggest you keep a close watch for rib loosening, in case it was hot salts blued.
Mike

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Sidelock
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Sidelock

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My apologies,

[Linked Image from i.imgur.com]

Originally Posted by Der Ami
Journeyman,
The crown W on the barrels shows were choked, but the amount of constriction is not shown. Since it has been re-blued and it is unknown what process was used, suggest you keep a close watch for rib loosening, in case it was hot salts blued.
Mike
I didn't even consider that, thank you for the heads up

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Sidelock
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Sidelock

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[Linked Image from i.imgur.com]

I tried to get a better one of the rifle barrel stamps

Last edited by journeymen; 03/19/21 08:27 AM.
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Sidelock
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The crown G means it was proofed for a single projectile. The 118/35 is the bore( not groove or bullet) diameter, expressed in gauge measurement. This works out to about 8.64mm or about .341". Experience shows that barrels with this marking commonly "slug" to .357-359" groove diameter. The most common chambering with this mark seems to be one of the 9.3x72R cartridges, but sometimes it may be found on one of the other case length 9.3 cartridges( 70-82mm) or some 9mm cartridges such as 9x58 1/2R S&S. The best way to determine the chambering is by making a chamber cast. If it were mine, I would try a 9.3x72R normal. before making a chamber cast, however.
Mike

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Sidelock
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Sidelock

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How do I learn to read these markings? Is there a guide i can reference?

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No, not really a single but a composition of several will net you some info. GGCA typical has such references possibly including Wirnsberger:

https://www.amazon.com/Standard-Directory-Proof-Marks-Wirnsberger/dp/089149006X

But you really need to read it with several drilling examples with which to compare the marks.


Serbus,

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To be honest with the knowledge depth here, I would post a single pic of a proofmark & then ask for the interpretation, which can be given a specific reference in a text.


Serbus,

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Sidelock
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journeymen,
There is a good reference in the 1975 Gun Digest.
Mike

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