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When are my cases toast?

06 Feb 2017
@ 02:57 pm (GMT)

jason

I have a 22br, when I picked it up the gunsmith said... Trim the cases then when there too long scrap them. I'm not really sure why.
With necking down and general wanting good accuracy, I got an amp, and aneal every firing as they suggest.
There Lapua cases, and I trim fairly often, just enough to keep them square, little and often you might but say.
I'm up to about 12 loads. Primer pockets are still tight.
So how do I know when to get rid of them? They must be flowing brass forward, so do I just wait until a head desperation line starts to appear?
Is there any other negative effects before this?

Oh Nathan if your reading his the website seems to be giving me alot of error 503 messages, timed out or something like that.

Replies

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06 Feb 2017
@ 03:02 pm (GMT)

jason

Re: When are my cases toast?
Shit wish I could edit the first post.
Head desperation is what I get when it's not shooting right.
Head separation, amount other errors, hopefully some one can piece it together.

Thanks.
06 Feb 2017
@ 03:20 pm (GMT)

Paul Leverman

Re: When are my cases toast?
Measurements are always helpful in determining case life. But more realistically, a piece of wire or paper clip will certainly tell you when your cases are thinning to the point of separation. Simply put a short 90* bend on the length of the wire and insert it into your case. You can run the bent part up and down the length in the web area. If you feel the "groove" it's time to bin them. You will know it when you feel it.

This isn't the only way, just the quickest and easiest.
06 Feb 2017
@ 03:27 pm (GMT)

mark whiteley

Re: When are my cases toast?
head desperation LOL,
I'm going to use that one for sure, I might already be suffering from it LOL

with a probe you should be able to feel a bump inside the case at the web where the separation will occur, there will also be obvious signs on the outside
IMO and what I do is wait till the primer pockets loosen up if you are not getting sign's that an incipient head case separation is on the way

regards Mark
06 Feb 2017
@ 03:31 pm (GMT)

Nathan Foster

Re: When are my cases toast?
Classic!

I do not like to trim little and often as I find that any small burrs can scratch up the bullet, even with care towards deburring. Plus I shoot high volume so I don't want to be doing this all of the time. So I tend to over trim and then leave them alone. Could be something to think about in this finicky rifle.

A dozen reloads is fairly good. If the brass is a tight fit in the chamber at the shoulder, it should not be losing material at the web only, so no worries there. But it will be thinning throughout. The most I have done is 25 reloads with culling brass. Certainly pushing it. I think for most folk that a dozen is well enough, even if the brass is just put aside for the zombie apocalypse rather than being binned altogether.
06 Feb 2017
@ 03:38 pm (GMT)

Nathan Foster

Re: When are my cases toast?
Yes, the old paper clip trick. Good advice guys.
06 Feb 2017
@ 08:20 pm (GMT)

jason

Re: When are my cases toast?
Thanks for the replies.
I do have the paper clip all made up. My 7mag likes to get the lines just above the case head.
So I know what everyone is talking about.
It's interesting what Nathan is talking about... If the headspace is tight, thinning will be from the whole case not just above the head. So Mr foster is there a early warning sign for this situation?
And yes, I'm partly asking as I figure the cases might not be helping my problem rifle.
I think I will put them in the zombie box anyway.

The other day while turning in some beer cans for cash I asked the guy about brass. He tells me they won't take cases as they might be dangerous, maybe something about he sends them on, maybe overseas and they won't take them, or something like that.
Anyone here recycle brass in n.z with any problems?
07 Feb 2017
@ 08:08 pm (GMT)

Warwick Marflitt

Re: When are my cases toast?
Just shred/chip/guillotine the old cases and sell him the ripped up scrap brass. Its safe now. Maybe the powder residue sets off the explosives sniffer machine or the dogs sit down and get too fat from the treats? Some people make bullet jackets with the old brass filling them with lead ......
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