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In fact, the ad (and the product) was for 9.5X57 Mannlicher Schoenauer RIMMED brass. I saw the R there, and completely missed it. That's ok, I'll take the hit. But...

I can't find any information on any rimmed rifle.

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Wasn't the 9.5x57 also called the 9,5 Nitro Express?

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That cartridge was marketed and referred to in contemporary catalogues by several names.

Brits tended to refer to is as .375 Nitro Express Rimless, .375 RNE, .375 Nitro 2.25"... .

Other references were 9.5X57, 9.5X56, 9.5X56.5... .

It is worthy to note that catalogues of the day often listed both .375 Nitro Express and 9.5X57 with a powder charge two grains heavier for the 9.5 than the .375 RNE though both had identical dimensions and projectiles.

There is disagreement about whether the cartridge originated with Westley Richards ca. 1908 or was of Austrian origin.



DWM531, from 1939 Stoeger








Note the Mannlicher Schoenauer 'action'.






ICI / Kynoch

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Citizen of the Cherokee Nation

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I haven't heard of the cartridge before but found that that Holt's listed a 9.5x57R MS model 1910 rifle in their Dec 2011 auction:


Maybe they got it wrong or maybe it was one of those cartridges that was developed and then disappeared just as quickly. 9.5x57 MS rimless is a known cartridge, and Europeans often made rimmed version of rimless cartridges to suit popular break open actions. Maybe that's the case here. I look forward to better informed details from the many experts on this forum.

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I suppose that is the .375 JDJ that the JDJ guys didn't know existed!

Would be sweet in a light single shot.

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I've just now read this: .375JDJ

It is very entertaining and well written!

Here are dimensions of the (wildcat) .375 JDJ, a necked down .444 Marlin, compared to 9.5X57:





Given the case width of .515 for the JDJ / .444 Marlin and .468 for 9.5X57MS, however, it seems an unlikely candidate for this cartridge.

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Citizen of the Cherokee Nation

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I am in violent agreement that a rimmed cartridge should not work in a Schoenauer magazine. It is NOT a straight walled case, it looks just like my other 9.5 bottle necks, it just has a rim.

I bet 16 euro that the "R" in the description was a mistake. I lost that bet.

The box is marked "9.5X57R MS". The case, as above, is marked "9.5X57 M.Sch."

So this shouldn't exist, but there it is in my kit.

I agree, it would make an interesting kiplauf or double rifle, or may even work well in a drilling or vierling. I just don't know if I'd ever come across such a beast. The Holt's one looks interesting, and I may have paid 400 pounds... but brass will always be a problem for any of the above, so I'm not "that" interested.

I am curious if anyone else knows anything about this. It's a mystery to me. 16 euro does not disturb me, now I'm just curious.

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I'm sure we're all rather curious about this one. That's quite the 'unicorn' you've got there.

I posted, "If I were to assume, I'd speculate that the 'R' is an error", in response to the Holt's auction listing shared by Hunter, not in regards to your purchase of cartridge cases.

Of all speculations posted thus far, I'm speculating that the most likely is the passage you shared from cartridge colector.net that stated, "might have been a special order for a client."

It doesn't seem likely that they'd be someone's 'wildcat' as that would not account for the mysterious head stamp.



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Citizen of the Cherokee Nation

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Another possibility for a rifle chambered for a 9.5x57 R might be a Steyr designed for a rimmed cartridge? A rechambered, rebored 6.5x53R? Or a new barrel so chambered.

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