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Old 11-11-2012, 06:24 AM   #11
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Quote:
Originally Posted by Shade
If your dies are not closing the case mouth enough to hold the bullet securely you have worn dies and they should be replaced.
The bullet should be held securely long before any crimp is applied.

Crimping is optional, neck tension is mandatory.

I've got nothing against a properly applied crimp, but often the cannelure isn't at the top of the case when the bullet is seated where I want it to be.
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Old 11-11-2012, 12:31 PM   #12
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Only bullets i crimp are my bigbore 45's (458winmag 458lott 45-70) and revolver bullets. I dont see a need to crimp 223/556 unless your chambering the same round over and over.

Only wayyour not getting a proper sizing on the necks is if your sizing die isnt set correct. Or your expander ball is the wrong one.

The way it works is the expander ball goes down the neck then the die squeezes the neck a little smaller than the ball. Then the ball comes out expanding the nec to the right size. If your dies arent set right the neck never gets squeezed.

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Old 11-11-2012, 02:25 PM   #13
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I like a very slight crush feel when seating and I have good luck not using the crimp die. Just make sure you are getting a full stroke seating.

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Old 11-11-2012, 02:41 PM   #14
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Quote:
Originally Posted by JonM View Post
I dont see a need to crimp 223/556 unless your chambering the same round over and over.
Jon, I will respectfully disagree; concerning ammunition to be used in a semi-
automatic I strongly urge crimping bullets. Cartridges will get rattled around
in a magazine and the bullet can get pushed back into the case at that point;
or as the cartridge is being fed into the chamber, the bullet could hit some
part of the action it could get set back in the case. In either situation that could
result in high chamber pressures due to reduced volume in the case.

This could also happen in magazine fed bolt actions, but is less likely.

In addtion, I like the Lee Factory crimp dies as they do not require a
cannalure, also the amount of crimp can be easily adjusted and with
rifle (collet) style dies all of the force is normal (90°) to the long axis
of the cartridge.
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Last edited by Shade; 11-11-2012 at 02:46 PM. Reason: poor grammar
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Old 11-11-2012, 02:58 PM   #15
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If the bullet drops in the case or has no real case tension you have not sized it correctly. Crimping will only mask the real problem. Fix the actual problem, and crimp everything with a Lee factory Crimp die.

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Old 11-11-2012, 03:36 PM   #16
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Quote:
You got sizing issues, Bud, and it ain't work hardened brass.
Bingo!!! Its a sizing problem.
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Old 11-11-2012, 03:45 PM   #17
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Whats the best way to correct the sizing problem? I use Lee factory dies and I can't accept they are worn out-, they have less than 1000 rounds through them.

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Old 11-11-2012, 06:15 PM   #18
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Quote:
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Whats the best way to correct the sizing problem? I use Lee factory dies and I can't accept they are worn out-, they have less than 1000 rounds through them.
Are they correctly adjusted?
What press are you using?
Do you have a micrometer?
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Old 11-12-2012, 02:51 AM   #19
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Quote:
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Whats the best way to correct the sizing problem? I use Lee factory dies and I can't accept they are worn out-, they have less than 1000 rounds through them.
This is good. You have set your sights on the real problem. Now lets fix it.

What dies are you using?

How did you set up the sizing die, and please do not say according to the instructions, step by step details only.

Have you measured the expander ball(button)? What was it's diameter?

What about your seating die? How did you set it up? Did you set it up so there would be no unwanted crimp?
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Old 11-12-2012, 03:11 PM   #20
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Use a LEE FCD.

When your brass gets old, shyt-can it, and buy more MilSurp. 5.56 brass is far too cheap to bother with annealing. I usually get 10 reloads out of 5.56, but if i get a hard lot, ai have no problems with gtting rid of it after 2 or 3 loading.

(I won't risk "my babies" with questionable brass)

And what you describe appears to be a sizing problem. Get those necks tight, and apply a light to moderate crimp and you'll be good to go.

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