Trying to ID cartridge


#1

I have had this cartridge that I thought was a Murata. Was told by someone with more knowledge than me that it was not, since it does not have the protected primer. I have looked for small caliber rifles with a tubular magazine and only come up with the Mauser-Kropatchek (8x60R) and the Murata (8x53R). Anyone have an idea what it is?
The dimensions are:
Bullet diam .326
Neck .355
base .495
rim .598
brass 2.08
oal 2.99



#2

Well, both the case length and bullet say “Murata” to me. Let’s see what the other numbers add up to.


#3

Measurements doesn’t match a japanese factory made 8 x 53 R Murata. It seems to be a japanese reworked 7,62 x 54 R case:

Several specimens:----------- Yours:

Case lenght: 52,32-52,63 -----52,83 (2.08)
Body lenght: 39,80-40,70 -----
Neck lenght: 7,80-8,20
Rim: 14,05-14,17 ------------- 15,18 (.598)
Haed: 12,26-12,52 ----------- 12,57 (.495)
Shoulder: 10,87-10,98
Neck: 8,93-9,17 -------------- 9,01 (.355)
Bullet: 8,10-8,14 -------------- 8,28 (.326)

The difference between rim and head seems to be exagerated. Can you post a high resolution image of the headstamp?


#4

Could it be an 8x52R Siamese someone has made up?


#5


I did not think there was any headstamp, but this is a better view of the base.

As an aside, I just discovered this site a few days ago, and I have enjoyed spending several (many) hours going through the old posts. I even found out some here are interested in old primers. There is a wealth of information here I had no idea was available.
I appreciate the help trying to ID this cartridge. I have some other weird specimens I would like some help with, but I will not overload the board with my stuff.


#6

Go ahead and post them. No one here will mind. That’s what the board is for.