I just picked up a wonderful old 9x57 Mauser. The brass is ludicrously expensive. I know I can use 8x57 but since I load for that too I am afraid of mixing up the brass. My question is this. I have found some Kynoch loaded ammunition that is actually cheaper than buying the brass. Even if I have to pull the bullets and start from scratch using this brass intrigues me. I don’t know how old the ammo is. Does anyone out there have any experience with reloading the older Kynoch brass?

What I had years back for my 6.5x54 MS was terribly corrosive and IIRC, Berdan primed. Dunno if that was ever changed.
Paul B.

Reforming 35 whelen is an option.

quote:

Originally posted by setterrun:
I just picked up a wonderful old 9x57 Mauser. The brass is ludicrously expensive. I know I can use 8x57 but since I load for that too I am afraid of mixing up the brass. My question is this. I have found some Kynoch loaded ammunition that is actually cheaper than buying the brass. Even if I have to pull the bullets and start from scratch using this brass intrigues me. I don’t know how old the ammo is. Does anyone out there have any experience with reloading the older Kynoch brass?

Setterrun


I had the same problem lovely caliber 9x57

Pull the bullets on the old kynoch and throw the rest away Horneber makes cases they last forever other option use PIVI 8x60 cases and trim down at least you got a different head stamp on them!
Sometimes you can find old RWS Ammo this ones are also Berdan primed but not corrosive and fine for shooting.

You will enjoy that Gun

Cheers

I'm with FREISCHUETZ on this. Unless made late ALL Eley-Kynoch ammunition will have corrosive primers.

That, in itself, isn't a problem if you do clean well. I shot with corrosive primed ammunition throughout the 1970s and 1980s with old British military 303. But then again had access to water immediately after firing.

If you are afraid of mixing up the brass use 30-06 and run it through your sizer die. That in iteself will give you the start of an 9x57 "neck"...with a 30-06 sized neck portion befond it.

Then just neck expand it up in, maybe, two steps.

Afterwards trim it. There is nothing that you will confuse that with in 30-06 afterwards!

Indeed I've done similar when making dummy 8x60S rounds...and 8x57 blank cartridges (that is how I know about getting the "neck" correct just through the sizer die only...so going another 1mm up to 9x57 won't hurt.

The real risk is that the case necks on your vintage Eley-Kynoch will be brittle and split when the ammunition is fired.

The other risk is that the ammunition will have lost its potency and thus will wound and not kill your quarry.

Best keep that old vintage ammo as a "souvenir" and go with modern primers IN MODERN MADE CASES.

Message for PAUL B:

quote:

Dunno if that was ever changed.

Yes, but very late. Boxes had a paper label saying "Non Mercuric Non Corrosive Primers" even though they were still of Berdan type. The very last Kynoch stuff was, as most know, loaded using Swedish (Norma) brass...so Boxer and non-corrosive primed.

If you really have that hard a time telling 9mm from 8mm then simply buy some nice Norma 9.3x57 cases and run em through your sizer.

I load one make of 8mm brass only for my 9x57. I use other brands for my 8x57. That way, at a quick glance, I know whether it is an 8x57 or 9x57.

I reserve the 9.3x57 cases for use in my 9.3x57's.

Though, I did previously form 9.3x57 from Milsurp .30-06 cases.

Color coding with a Sharpie marker is way too simple.

Or one could just use red primer sealant in the primer pockets...it will flow onto the case heads, and identify them just fine, in addition to waterproofing the primers.

Always just used Norma 9,3x57 brass. Most Kynoch isn't worth the effort. Have used it and you must clean the barrel with hot water after every use. Couldn't be bothered.

My 9mm shoots regular 158grn pistol bullets like a dream- have used it to teach many a youngster to hunt - When we hunt in areas that do have dangerous game having a few rounds of 'full power' ammo in their belts gives the kids confidence in the bush and it knocks over impala just fine with the 158grn at 2400fps - and moderate recoil and

You probably want to slug the bore on that gun before you get too far along in your reloading plans. Bore diameter in the European 9mm's can vary from the American .358's