Obsolete cartridges

[MS 9x56]

I seem to have a penchant for buying rifles chambered in obsolete and nearly unobtainable ammunition. My newest acquisition is a ma user 98 proofed in 1937 in 8mm mauser. Just my luck is turns out it is chambered in 8x57 J. Bore diameter .318. It is a gorgeous engraved rifle with raised rib full length, 1/2 octagon 1/2 round barrel wearing a Lyman peep sight mounted on the bolt release lever. Just an awsome custom sporting ma user 98. Already ordered dies but where do I find load information?

 

[93marlin]

If I remember correctly, there's an issue of Cartridges of the World has separate loadings for the 318 bullet.
I'll check and see if I can find my copy.
I currently have three 8x57 sporters.
All with the S bore. Awesome caliber!

 

[93marlin]

Well, it wasn't in Cartridges of the World.
Ken Waters "Pet Loads" is where I read about the 318 bullet in the 8x57.
All that was said make sure of the diameter of your rifle.
Start with some reasonable loads well below the maximum listed.
The 8x57 is a great cartridge! Enjoy your sporter!
Post some photos if you get the chance.

 

[Zinz]

I’ll be watching this thread. I also have a beautiful Sporter with a J bore