Unknown Cartridge Help!

[Jim Watson]

If we'uns had had them there rimless bottleneck cattiges, we could have fought off Sherman.

 

[rcmodel]

Has to be a folded head, electronically fired, MG case from a primitive UFO that made a low strafing run over the Battle for Atlanta I tell ya!!

What else could be buried that deep??

Now, excuse me while I go get some more tinfoil for my hat.
(It needs at least another layer on top, the voice in my head is telling me.)

Rc

 

[JimKirk]

Well at least the UFO part is a good a guess as all the other guesses !!

That would be a Unidentified Fallen Object .... not sure Tin is going to be enough protection ... maybe a lead hat!

 

[rcmodel]

Well, doesn't matter.

Tin would work just fine though.

It hasn't been Tin since 1910 ( no pun intended).
That's just when aluminum foil replaced Tinfoil.

See, that's why the voices in our heads keep getting through.

If it was still really Tin?

Well, you can just imagine the results would be better then they have been since 1910!

rc

 

[JimKirk]

So ... we have flew a few saucers ...wore some metal hats.... played cowboys and injuns ... fought uncivil war ...

And so far nobody .... nobody really knows what this is "Cartridge like" object is !!

Back to square one ....

 

[Ron James]

I don't think it is a toy, nor do I believe it is for a hand held firearm. As noted the primer looks like neither a Berdan or Boxer, in fact it does not look as if it had a separate primer. If it has a single flash hole inside then it is not likely a rim fire ( it does look like a rim fire) .

 

[JimKirk]

After looking very close at the rim under magnification ... there are marks that "appear"(I use that term loosely) to be machined ... so it is possible that the rim has been turned off ... another clue is that the "extractor groove is very shallow and very narrow .... please remember that this "object" is in rather bad condition .... trying to decide to clean it farther with out damaging it beyond it current condition...

 

[H&R Glock]

I have Jane's Ammunition 2000-2001 edition. Your description is pretty close to the 8x63 Swedish round. Could you repeat your measurements carefully and maybe make them metric.?
The 8x63 Swedish is:
Rim=12.7mm
Case=63.00mm
Body=12.32mm
Neck=9.04mm
Bullet=8.20mm

of course the common 30:06 is
Rim=12.01mm
case=63.25mm
body=11.94mm
neck=8.64mm
bullet=7.82mm (yes it sez 7.82)

Maybe this case has laid in a puddle and become deformed? hehehe go figure

 

[JimKirk]

Rim diameter = 10.1 mm
case Length over all = 62.6 mm
Rim thickness = 1.8 mm
Case diameter near rim = 10.1 mm
Case diameter at shoulder = 8.7 mm
mouth diameter = 7.9 mm

Measured multiple times with a very good set of calipers... carefully each time!!!!!!!!!

 

[xxmaa]

.30 Remington ? Somehow stretched 10.6 mm?

 

[Jim Watson]

OT, But I Gotta Say It

bullet=7.82mm (yes it sez 7.82)

Why shouldn't it? That is what it is, after all.

7.82 millimetres = .308"
The familiar 7.62 mm designation is the barrel bore diameter of .300", a term which seems to confuse the Internet Generation.

 

[JimKirk]

.30 & .32 Remington fit many of the measurements fairly close ... all but the length ... be kind of hard to stretch one that much!!

The area this was found was an area that had been covered with houses for a very long time ... not a wooded type area ...