Jeff Siewert

Nickel's not real good for you either, but, yeah, it's better than cadmium.

I'm sorry, what's that?

Yes.

Yes, it can.

It can.

Yep.

And that would help explain the case separations as a result of this.

Okay, and if we've got no questions here, we'll move on.

Okay, so this is another case failure type that I saw with, this has happened to be Lake City 30-06 brass that I had converted to 25-06 back when I didn't have two nickels to rub together.

And

Basically, I had three reloads on this and I found this rather peculiar failure mode at the very base of the cartridge.

And, you know, I started thinking about this a little bit.

And it's my belief that this is caused by excessive work hardening.

from multiple firing and resizing cycles, okay?

And the real problem with this is the old paperclip test won't find it.

The crack is so tiny and so insignificant that getting in there with a paperclip, you're not going to be able to find it.

So the deal with brass is you're always trading off

Yield strength for elongation.

So back at the extractor lip and primer pocket, you want really high yield strength.

And the penalty you pay for that is very low elongation and failure, say only 2% or 3% perhaps.