8x57 mm Question

I have a Husquavrna Hi-Power in 8x57. I bought some Seller & Bellot 8x57 JR

ammo for it, and it will not feed. It appears to be rimmed like a .30-30 or.303,

as opposed to the Turkish 8x57, which is semi rimmed.

Are there two different types of 8 mm ?

There is a 8x57 Mauser[rimless] and also a 8x57R [the rimmed version] The J [or I ] stands for infantry. Introduced in 1888 with a .318" bore but was changed to a .323" bore in 1905. Never fire a .323 in a .318" gun.....You have the rimmed version which is made for double rifles when you need the rimless one.

Let me make sure I understand, Natchez catalog's the following 8x57 ammo,

which ones are rimless?

ZYSBA85702
AMMO 8X57 JR 196GR SP 20/BOX
In Stock
$10.38
$9.43

ZYSBA85703
AMMO 8X57JS 196GR SPCE 20/BOX
In Stock
$10.28
$9.78

ZYSBA85707
S&B 8X57 JS 196 FMJ 20PK
In Stock
$9.70
$9.20

Thank you very much for clearing up this mystery.

JS is rimless for bolt actions, JR is rimmed for drillings, etc.
There are also 8x57 J loads for pre-1905 .318" bolt guns and 8x57 JRS loads for .323" drillings.

Having just purchased an 8mmMauser K98, I have gone through the same confusion about different 8mm's. Jim gives you good advice that agrees with what I have learned. The second 2 loads listed for sale seem to be what you want. As an aside, I have not yet fired my new rifle and was thinking about making it a cast bullet only gun. Quantrill

I wanted to thank you both, for taking the time to answer my question.

Great info!