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Old October 11, 2018, 07:07 AM   #1
ligonierbill
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What is it?

I asked this question on a more specialized forum, but maybe you can have some fun with it. This chamber cast is from an 1890's vintage Büchsflinte (Brits would call it a cape gun). About 2" in length, other dimensions (corrected for Cerrosafe expansion):

Groove (7, so an approximation) 0.470
Case mouth (not well defined) 0.513
Base 0.525
Rim 0.605

I have an idea of what it is, but I don't know for sure. What do you think?
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File Type: jpg Chamber cast.jpg (48.3 KB, 149 views)
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Old October 11, 2018, 07:24 AM   #2
Mike Irwin
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I have something tickling the back of my mind, but I can't place it right now. I'll have to go home later and check my references.

It appears to be a straight case with a slight neck, but that may just be the fall into the leade.
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Old October 11, 2018, 03:34 PM   #3
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.45-70 is too obvious....I give up.
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Old October 11, 2018, 03:39 PM   #4
ligonierbill
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Too wide for 45-70. I tried a new case, and it rattles around.
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Old October 11, 2018, 09:25 PM   #5
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I saw something online recently that had to do with making a sort of jumbo case to contain the & be the firing chamber for a 3D printed gun - are the case walls exceptionally thick?

Could someone have been dumb enough to rough out a .50 case?
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Old October 12, 2018, 12:46 AM   #6
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You didn't give a case length, but . . .475 NE?
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Old October 12, 2018, 06:16 AM   #7
Mike Irwin
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"You didn't give a case length, but . . .475 NE?"

Uhm.... the picture shows the cast laying on top of a ruler.

It appears to be in the 60 mm range, which makes it way too short for a .475.

But, the base and rim diameters are VERY close to the .475...
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Old October 12, 2018, 08:37 PM   #8
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It looks to me like the taper of the ball throat begins at about 52 mm, so the case is no longer than that.
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Old October 13, 2018, 07:59 AM   #9
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Unfortunately I'm still coming up with nothing.

Closest I could find are the 10.75x65 Collath, but the bullet isn't the correct diameter for that round.

The 10.3x60 Swiss is close, but it also has a well defined neck, and the bullet isn't the correct diameter.

I've got one more source that may give me some insight -- Donnelly's book on cartridge conversions.

After that, you may need to contact one of the collector's societies.
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Old October 13, 2018, 08:46 AM   #10
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The 450 no. 2 and 475 no. 2 are longer than normal NE's.
Could be one of those earlier black powder express cartridges
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Old October 13, 2018, 09:28 AM   #11
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Looking around, I think it is possibly a Danish variant of the Remington Model 67 Rolling Block cartridges originally made for a joint Swedish-Norwegian arms purchase a few years after our civil war, first in rimfire and later in centerfire. At 0.47" groove, the bullet diameter for the OP's casting is just over 11.9 mm. The original cartridge's bullet is bigger at 12.6 mm, but there is an "11.44 mm" variant in QuickLOAD's database with an actual bullet diameter of 0.469". It is called: "11,44×45,5R Rem Danish M/67". The rim and back of the case are a little narrow for the casting, but the original cartridge looks a little big for it. The QL database says the dimensions are based on an "old SFM drawing". I don't know what SFM stands for but it may refer to the Swedish military. I do know the Wikipedia entry on the larger original m.67 cartridge shows a drawing in linjers which are tenths of a Swedish inch or of a Norwegian inch, two units that were about 5.7% different from one another and which are which are about 28% and 21% bigger than an American inch, respectively. So there is room for unit conversion error in all this. Indeed, just multiplying by the difference in lengths and diameters between Swedish and Norwegian unit difference just about converts between the two original cartridges. I have no clue what a Danish inch may have been back then.
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Old October 16, 2018, 08:49 AM   #12
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Unclenick, you may be right, at least close. The chamber cast dimensions don't completely match, but the guy I bought it from thinks it is 11.7x51R Danish. Chamber could be a little over size. The seller never fired it, but someone apparently did. He is sending me a partial box of Buffalo Arms ammo with 6 fired cases. Black powder, of course. The cases should say a lot. What I can't figure is why a Bavarian gunmaker (C. Stiegele, Munich) would chamber a Danish round. But this is circa 1890, so all monarchies with lots of social and family connections. Maybe a Danish prince was shopping in Munich.
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Old October 16, 2018, 03:39 PM   #13
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Quote:
What I can't figure is why a Bavarian gunmaker (C. Stiegele, Munich) would chamber a Danish round.
Because the customer wanted that? Had a customer bring in a very nice European-made Cape gun recently. Case was essentially a 11mm Mauser case, but the bore was .427", about .021"/.55mm smaller than the 11mm Mauser (.448"). Custom dies for sure.
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