8 x 57 JRS

You may want to try Italian Sporting Goods in Vancouver. They list it, but I'm not sure if they have it in stock. If they don't have it, they can get it!
 
I bought some S&B 7x57R from Trade Ex last year, and were great to deal with, I'm sure they could order some 8x57JRS for you. Gun shows can sometimes be a source for hard to find ammo or brass, in my experience.

http://www.shop.tradeexcanada.com/produits/78
 
I have had great experience with Prvi Partizan ammunition. It's relatively cheap, and it's of extremely high quality! If you're looking for ammunition for a WW2 rifle, they have the correct 198gr FMJBT loads as well.
 
Buddy of mine is reloading this caliber (with my help) and from what I can tell RWS brass is the best by far.We found this brass on a gun show last summer.

Each of the makers of this brass seems to be using different rim diameter and it's the rim that goes bust first,at least in his rifle.
Also you will find that finding proper shellholder can be hard.
Whatever brand of brass you will get you might need different size holder.
 
I reload my 8mm. shellholder is the same as for .30-06. When buying ammo stay away from American manufactured crap. It's downloaded in case you have a .318 barrel instead of the usual .323. The .318 barrel is practically nonexistant but measure it just in case.

my 150gr Hornady Interlock over 51.5 grains of IMR4350 seated just off the rifling shoot a 5/8" group.
 
Rimmed brass is harder to find. I assume the case is the same as the 7x57R, so if you find those you can just expand the neck.

I sometimes shoot rimless in a rimed rifle, if i can't find the right brass. Depending on the action, the brass will fall out, or can be picked out with a small screwdriver or pushed out with a rod.

I did all my load development for my 307 with 308 brass before my bag of 307 brass arrived. I assume 8x57 brass would fit the chamber.
 
Actually, the brass for the 7 x 57R and the 8 x 57R have different rim thicknesses. The 7 x 57R rim is thicker, and will not allow you to close the action on it. This was done in order to prevent people firing the 7 x 57R round in 8 x 57R rifles.
 
Denisb said:
I reload my 8mm. shellholder is the same as for .30-06. When buying ammo stay away from American manufactured crap. It's downloaded in case you have a .318 barrel instead of the usual .323. The .318 barrel is practically nonexistant but measure it just in case.

my 150gr Hornady Interlock over 51.5 grains of IMR4350 seated just off the rifling shoot a 5/8" group.
Click to expand...

The Original post asked about 8x57JRS. Not to pick on you, or another poster who referred to WW2 rifles, but all the information needed is right in the question.

S = .323" bore
R = Rimmed, not the military rimless version.

No wonder North American manufacturers refuse to load this round to its potential, very few shooters here bother to read and carefully match the data stamp on the barrel and headstamp on the ammo. So Rem, Win and Fed call the rimless round "8x57 Mauser" and load in a light bullet that is a poor fit for either bore size and at very low pressure. The rimmed case is not loaded in North America at all.

Shellholder for the 8x57JRS is RCBS #26 not "the same as the 30-06"

Norma and RWS ammunition for the 8x57JRS is very good but expensive, and Sellier & Bellot is economical but their plain bullets are not very robust. That is all the factory 8x57JRS ammunition that I have experience with.
 
Another consideration is that the ammunition for the break action firearms are always loaded down from the rimless rounds, due to the weaker actions. Do not use loads meant for a bolt action in your break action rifle.
 
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