ID help needed-Probably 11mm Mauser


#1

I’m a shot shell collector but got this with some other stuff. HS: U.M.C. U.S.A., high raised base, copper primer, Rim: .585, case base: .518, neck: .460, case mouth: .457, bullet: flat nosed lead .438, case length: 2.355, OAL: 2.99.


#2

A picture would also be a good idea. M.rea


#3

Not clear if this is a shotshell or a cartridge! More info needed. Thanks for posting- one of the members should be able to help!

Cheers,

Lew


#4

Sounds like 11.15x60R Mauser,but a picture would help.


#5

Not set-up for pictures yet. This is a CF rifle cartridge. The HS puzzles me since it only has U.M.C. U.S.A.

Thanks

Rookie


#6

Without a picture, I would agree with Zwerge. The headstamp and flat nose bullet are both correct for this round.


#7

Rookie, does it look like one of these? If you scroll down the headstamp pictures you will see a case with the same headstamp of your round

municion.org/11_15x60R/11_15x60R.htm


#8

Pivi,

The headstamp looks correct. The third from the last cartridge picture before the HS’s looks good except the bullet is approx. .34 longer.

Thanks


#9

Pivi,

To clarify my last post. The bullet in my cartridge is longer the the one in the picture. There is a tight lip crimp and the bullet does not show signs of being pulled.


#10

Yeah, these old cartridges commonly show some dimensional differences. Anyway a 2.99" OAL is OK for a 11 mm Mauser cartridge


#11

Thank you Pivi. Any idea when this was manufactured.


#12

Rookie–U.M.C. made the 11mm Mauser from 1905-1910. It has a 380gr. Paper-Patched Flat Nosed Lead bullet. It used a No. 2 1/2 Brass primer and is a black powder load. After the merger of Remington and U.M.C. in 1911, it was continued for some time with a “REM-UMC”. They also loaded a Yellow Paper Saboted Shot load using #8 Shot.


#13

Thank you Ron. That answers all my questions.

Rookie