Thread: Cooked my brass, Whoops

I would use them, they look badass in that colour, and you don't want to miss an opportunity to have some badass looking ammo

Where do people think they would fail? They are encased by a solid metal chamber and can only expand as far as that allows. After all it is not the brass itself that contains the pressure is it. It is the bolt face at the rear and the barrel surrounding the case????? Will it split at the neck? Be extracted in two pieces?

i'd think they'd be ok?
they are never going to hold in the pressure, that's the job of the chamber/bolt, they might be soft to resize without collapsing till hardened again tho....


oops, just saw Shearer's post after skimming to the bottom.... I'm with him
oh, and the anneal temp looks like 250c in that graph, for some kinda brass.....
reach temp, hold for time of choice to be certain chrystals are aligned, then cool at some rate that doesn't bring in more stresses....
brass harden with work, steel by quick cool to lock in new Chrystal structure.

Originally Posted by Awaian

i'd think they'd be ok?
they are never going to hold in the pressure, that's the job of the chamber/bolt, they might be soft to resize without collapsing till hardened again tho....


oops, just saw Shearer's post after skimming to the bottom.... I'm with him
oh, and the anneal temp looks like 250c in that graph, for some kinda brass.....
reach temp, hold for time of choice to be certain chrystals are aligned, then cool at some rate that doesn't bring in more stresses....
brass harden with work, steel by quick cool to lock in new Chrystal structure.

Wouldn't the shoulder crush when resizing, Primer pocket expand, and neck run into the throat on firing?

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yes for resize, not sure about the rest, possible?
load light.... suck n see
or scrap em, get more, don't multitask till after the new skirt purchase cos you're not designed for it.

Dont know if this will help, its from a 1964 lyman book basically as I read it, a case annealed to the same crystal structure right through is not a good thing, but forrm your own opinion.

Originally Posted by Marty Henry

Dont know if this will help, its from a 1964 lyman book basically as I read it, a case annealed to the same crystal structure right through is not a good thing, but forrm your own opinion.

Weirdly, it says the neck needs to be harder than the rest. But those small crystals tell me it's softer than the rest.

😥

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nice info, thanks Marty Henry, flat out says its stuffed (when case completely annealed).

also like to apologise if my flippant comments don't get received well. (ie last post), sometimes can be a bit blokey and i realise we don't all know each other so well.

So are none of you quenching? Critical part of annealing....

Originally Posted by Wirehunt

So are none of you quenching? Critical part of annealing....

For steels, not for brass according to the literature.

Originally Posted by Shearer

Where do people think they would fail? They are encased by a solid metal chamber and can only expand as far as that allows. After all it is not the brass itself that contains the pressure is it. It is the bolt face at the rear and the barrel surrounding the case????? Will it split at the neck? Be extracted in two pieces?

Not completely unfortunately. The head around the perimeter for the few millimetres where it emerges from the chamber - from the upper edge of the extraction groove back - is not supported. I have brass from this part of a case embedded in various parts of me so would encourage everyone here to err on the side of caution when it comes to things that might affect case heads.

once at temp it's done.
a soak is held to be sure all the object of interest has time to be affected evenly, so some tens of minutes depending on the heating implement.
flame/oven etc and metal thickness/mass

We always did this old school, container of water at the right level on the cases, get to the right colour with the gas torch, a shake to quench. I'd say the commercial outfits are doing the same going by the case colour when you get them.