✅ SOLVED Rim fire cartridge, one striker Mark versus two like on a Henrys.

[Bedrock Bryan]

Inside diameter about 3/8" found in southern Oregon, Cow Creek., Northern extreme gold country in SW Oregon.
Info much. Information on this cartridge much appreciated. 7/8" long...edit

 

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[NOLA_Ken]

That one will have been fired in a later Winchester rifle, like the Model 73, as I remember it, the Model 1866 Winchester had dual firing pins like the Henry, but was the last of them, with all further models having a single firing pin


Edit.... Without an exact measurement in 100ths of an inch, I'd guess that yours is a .38-40, 3/8ths is .375 cal....

 

[drbecker]

That one will have been fired in a later Winchester rifle, like the Model 73, as I remember it, the Model 1866 Winchester had dual firing pins like the Henry, but was the last of them, with all further models having a single firing pin


38-40 is a center fire this is a rimfire. Most likely a 38 caliber rimfire revolver round.

check out this link

38ShortRimFireCartridges

 

[Bedrock Bryan]

Thanks all, found several of these in an old Southern Oregon gold camp. I failed to mention that the manufacture head stamp was...US...not that that changes anything.

 

[NOLA_Ken]

That one will have been fired in a later Winchester rifle, like the Model 73, as I remember it, the Model 1866 Winchester had dual firing pins like the Henry, but was the last of them, with all further models having a single firing pin


38-40 is a center fire this is a rimfire. Most likely a 38 caliber rimfire revolver round.

check out this link

38ShortRimFireCartridges

good call. It was getting late when I was looking at this one....

 

[Ironman!]

Cow Creek! I used to dredge there in the early 80's!! Lived in Roseburg for 40 yrs.!!!

IM