Neighbors 6.5x55 Swedish head stamp questions..

[Preacher]

Neighbor's Norma cases are splitting at the neck on his Norma brass 1st firing. So he sent down this brass, specs are good, but no clue as to the head stamp-- can any help me out with that ?

 

[HankInWisconsin]

Century Arms head stamp?

 

[joshb]

^^^^ Winner winner! Century Arms by Norma.

 

[nakneker]

That’s correct, I’ve used that brass in the past without issue. Hope you can help him figure it out a preacher.

 

[DanSavage]

Time to anneal eh?

 

[Preacher]

Time to anneal eh?

Thats true but shouldn't need it only once fired....

 

[joshb]

Thats true but shouldn't need it only once fired....

Yeah, but there’s that theory about brass getting “old and brittle”. It can’t hurt and it may solve the problem?

 

[blades]

Isn't a theory, Brass does age and as it does it becomes brittle/harder- less elastic. All metals age and work harden to limited extent. case in point I had some brand new very old stock 25-35 cases. necks split with lite forming loads, annealed problem solved.

 

[Preacher]

There was only the one box and I wanted to use the brass, never gave it a thought of being old and age hardened, I'll pull the bullet's and run em through the AMP...
Will also see if the same happens to the CA brass, that has already been fired before..

 

[SKWERLZ]

Neighbor's Norma cases are splitting at the neck on his Norma brass 1st firing. So he sent down this brass, specs are good, but no clue as to the head stamp-- can any help me out with that ?

Any measurements of loaded vs fired case?

 

[Preacher]

Any measurements of loaded vs fired case?

Factory loaded @.293.5
Fired ------------@. 301.5
Sized -----------@.292.5
This was from another box, priced @ $19.85...
AV--2840.5
ES--25.8
SD--11.2
The brass seemed to survive better than the others did..
Seems pretty fast to me for a 96 swede shooting 139 grain bullets..
I'm going to load 120's because he has the most of them, and doubt I'll run them that fast....

 

[Infrequent Shooter]

glad to learn this. I have a bit of 30 y/o unused Norma 6.5Swede brass.