new brass way under saami headspace

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buckyne

New member
Just bought some winchester .243 brass. It is way under min saami headspace. .006 average under the min by my measure. Is it me or is this dangerous. I know it is hard on the brass to undersize when I am rsizing it after firing. It seems crazy that the new unfired stuff is so short?

Are the companies really scrimping on brass by now undersizing things so save a penny? Or has it always been this way. I have not been reloading for more than a couple years. Just wondering what everyone else's experiences have been. and if the brass is too short to shoot safely.

Thanks
 
Originally Posted By: buckyneJust bought some winchester .243 brass. It is way under min saami headspace. .006 average under the min by my measure. Is it me or is this dangerous. I know it is hard on the brass to undersize when I am rsizing it after firing. It seems crazy that the new unfired stuff is so short?

Are the companies really scrimping on brass by now undersizing things so save a penny? Or has it always been this way. I have not been reloading for more than a couple years. Just wondering what everyone else's experiences have been. and if the brass is too short to shoot safely.

Thanks

How can you ask a question like this, withOUT saying how you measured it, and what the measurement was???

 
Excess headspace is over 0.007. Have you measured your fired brass to determine if the brass will be excessive in your chamber?
 
Originally Posted By: Coyote#1Excess headspace is over 0.007. Have you measured your fired brass to determine if the brass will be excessive in your chamber?

Actually, 0.014" is acceptable SAAMI headspace. and 25 thou is safe (for the first firing).

Personally - after the first firing, I have 0.000" headspace. I shoot cases for the first time... wet!


 
0.014 is not acceptable headspace! It can ruin your brass on the first firing even though its probably not dangerous, its defenetly not ideal.
 
sorry catshooter. Measured with digital calipers and the hornady lnl headspace gauge. Not super expensive setup but I am getting fairly consistent results so I am pretty confident of my measurements.
 
Originally Posted By: Coyote#10.014 is not acceptable headspace! It can ruin your brass on the first firing even though its probably not dangerous, its defenetly not ideal.


That YOU say that 0.014" is not acceptable, means doodly squat - call SAAMI and tell them they are off base
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I NEVER said it is ideal - I would suggest you check SAAMI - you will find that 0.014" is within SAAMI acceptable specifications - whether you approve or not.

Before making statements like that, you need to learn something what you are talking about.

Originally Posted By: buckynesorry catshooter. Measured with digital calipers and the Hornady lnl headspace gauge. Not super expensive setup but I am getting fairly consistent results so I am pretty confident of my measurements.



I have two of them - they are repeatable, but not accurate - typically, they read 3 to 7 thou error. The error is ALWAYS to the short side because of where the error is introduced.

To use them properly, you need to zero them on a known REAL headspace gauge, and then add or subtract the numbers you get from cases.

You did NOT say what the measurement you got was...



 
I am seeing 1.625-1.631 variations. Most seem to be on the 1.625-1.627 range. Of course if the comparator is off then I am wasting my time/ over thinking things. I don't have a real headspace gauge handy so the LNL is all I have.
 
Originally Posted By: Coyote#1And perhaps you shoud clarify hot shot! He's talking cartridge headspace not over all.


Boys and girls, class is in session.

I'll get some popcorn.
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Lol, funny stuff guys.. Maybe while he's off digging thru a book, Ill make myself some popcorn as well..

Jokeing aside, he is correct about the over all headspace. I was talking cartridge case headspace.
 
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Originally Posted By: Coyote#1Lol, funny stuff guys.. Maybe while he's off digging thru a book, Ill make myself some popcorn as well..

Jokeing aside, he is correct about the over all headspace. I was talking cartridge case headspace & I thought buckny was to..
 
Originally Posted By: Coyote#1Lol, funny stuff guys.. Maybe while he's off digging thru a book, Ill make myself some popcorn as well..

Jokeing aside, he is correct about the over all headspace. I was talking cartridge case headspace & I thought bignasty was to..




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Originally Posted By: buckyneI am seeing 1.625-1.631 variations. Most seem to be on the 1.625-1.627 range. Of course if the comparator is off then I am wasting my time/ over thinking things. I don't have a real headspace gauge handy so the LNL is all I have.

If your cases are running 1.625 to 1.631, you are well INSIDE of SAAMI specifications.

SAAMI min is 1.627", and the Hornady reads short by 3 to 6-7 thou. you are fine.

What you have is a tool that always reads short. It was designed to be accurate, but the way it is made, it will never be accurate, and never give you TRUE case headspace.

In order to read true headspace, you must first zero it on a known (and accurate) headspace gauge, and then add or subtract the readings to get the actual measurement to the datum line.

By themselves, the tools you have are not serving you well.

If you want to know how to bring your cases to "0" headspace, without stretching them, drop me a PM.

 
Originally Posted By: Coyote#1And perhaps you shoud clarify hot shot! He's talking cartridge headspace not over all.

YOU ARE AN IDIOT!!!

I knew exactly what he is talking about - I am a federally licensed commercial ammunition manufacturer, and I live with headspace gauges every day...

Between June 2010 and December 2011, I loaded 18 TONS of ammunition...

... how much did you load?

Get a brain, then get a life!
 
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