Comments on: Cartridge Brass Alloys Revealed by X-Ray Spectrometers

By: Paul Leach

Paul Leach — Tue, 17 Oct 2023 11:19:34 +0000

Hi
An excellent article especially the use by Lapua of what is casting brass.
I’d also like to see the tramp alloys in this analysis.
Regards
Paul
Metallurgical Chemist.

By: RAD57

RAD57 — Sat, 25 Aug 2018 13:13:49 +0000

I have had excellent results handloading with Lake City new brass in my bolt and semi-autos. I would like to see the spectrometer analysis of this brass to compare to the ones already mentioned. My LC 15 brass was more consistent in weight and concentricity than my blue box Lapua!

By: LAWRENCE OTU

LAWRENCE OTU — Thu, 02 Mar 2017 11:23:31 +0000

Please, does anyone have the characterization for spent brass cartridge? I just wanted to see the effect of the firing process on the properties of the brass casing for bullets.
Many thanks

Lawrence

By: Fred Bohl

Fred Bohl — Thu, 15 Sep 2011 22:27:37 +0000

Bryan,

I will pass along your question to my sources but some are not reloaders. It would be helpful if you would list some of the characteristics you think are important reloaders.

Fred

By: JPeelen

JPeelen — Wed, 14 Sep 2011 20:43:07 +0000

Excellent article. The Lapua brass variant with presumably only 62 percent copper is a great suprise. (Hard to believe, to be frank.)
Nevertheless: thanks, Wisconsin shooters. Please continue these measurements on other calibers and makes.

By: Bryan Litz

Bryan Litz — Wed, 14 Sep 2011 12:26:25 +0000

This (very good) article does a thorough job discussing the material composition of brass. I’m curious to know the effect of annealing. Annealing doesn’t change the material composition of the metal (as in ratio of copper to zinc), but it does affect the ductility (and maybe other properties) of the brass in very important ways.

To the experts: what is more important to reloaders looking for ‘good reloading brass’ (consistent neck tension, etc): material composition, or the brass’s state of anneal?

-Bryan