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Too much crimp??

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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: May/19/2014 at 12:55
cheaptrick View Drop Down
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These are .224 Sierra Match Kings that I crimped using a Lee Crimp Die and pulled thereafter. I feel I may have "over done it", which is how roll, but are the rounds unsafe to use in my AR? I realize the deformation of the bullet may decrease accuracy, but like I said, these are for my AR and I'm more concerned about bullet set back than I am about sub MOA accuracy.  
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: May/19/2014 at 12:56
cheaptrick View Drop Down
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By "unsafe" I mean will there be an unsafe increase in chamber pressure.

Thank you in advance. 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: May/19/2014 at 13:14
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Looks like a little to much to me, But don't crimp anything at all ever so I don't have much knowledge in the crimping area. 

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: May/19/2014 at 13:18
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Wow, that is a heavy crimp. Have you checked into getting a taper crimp die?
Where does your load fall in your loading manual? If your close to max, then you MAY not want to run a steady diet of them through your AR.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: May/19/2014 at 13:44
cheaptrick View Drop Down
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I'll probably just hammer 'em out and start over. Oh well.....

Thank you. 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: May/19/2014 at 15:20
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I don't crimp anything at all either.  Even in my ARs I don't.  Never had an issue and I have loaded and shot well over 20,000 rounds out of my ARs. 

SMKs do have very soft jackets as well, so it doesn't take much to dent them. 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: May/19/2014 at 15:23
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If near max I'd pull them. 
 
I'd also check the ones you have pulled to make sure the heavy crimp didn't make any bulging in the bullet body near it with a micrometer.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: May/19/2014 at 16:59
cheaptrick View Drop Down
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Originally posted by supertool73 supertool73 wrote:

I don't crimp anything at all either.  Even in my ARs I don't.  Never had an issue and I have loaded and shot well over 20,000 rounds out of my ARs. 

SMKs do have very soft jackets as well, so it doesn't take much to dent them. 

I haven't ever crimped either, but I'm half scared of a set back round going off. 

Good point about the soft jacket on the Match King. I honestly didn't think I was putting a whole lot of pressure on the press arm when I was at it, so I'm a little surprised that it has that heavy of a crimp. But, like I said earlier, rarely have I ever messed up something by a lack of effort.....

Thanks again, Fellers.    
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: May/19/2014 at 20:18
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One has to wonder if that amount is sufficient to cause a problem given that the lands do a much larger amount of damage to the bullet

and the amount of disfigurement perpetrated by the factory

and sometimes a combination of both

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: May/19/2014 at 20:41
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Though it's a bit unsightly, I highly doubt it will cause any pressure problems, especially given he has a 5.56 chamber.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: May/20/2014 at 06:09
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My main concern with crimping is the uneven pressure on the bullet. so when fired it will push the bullet into the lands off center. I know the crimp wont drive up the pressure but a bullets going into the lands/rifling would of its a tad off center. Just my thoughts on it, but I don't think much so take it for what it is.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: May/20/2014 at 06:46
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You don't think much...

Brando, you are one of the most THOUGHTFUL people I've ever known.

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: May/20/2014 at 13:34
cheaptrick View Drop Down
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I'm gonna go ahead and choot 'em. What's the worse that can happen...right??

 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: May/20/2014 at 15:28
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I would, who needs a face anyways... Big Grin
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: May/20/2014 at 16:32
cheaptrick View Drop Down
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Originally posted by Bigdaddy0381 Bigdaddy0381 wrote:

I would, who needs a face anyways... Big Grin

Maybe I'll let some dude at the range fire them off......Devil
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: May/21/2014 at 02:25
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You should see the crimp I put on 30/30 rounds.

Pull them and send them to me.

Veral Smith is a proponent of the Lee factory crmp die. 

I crimp most everything,,,sometimes 'light', sometimes heavy.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: May/21/2014 at 05:47
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Originally posted by cheaptrick cheaptrick wrote:

Originally posted by Bigdaddy0381 Bigdaddy0381 wrote:

I would, who needs a face anyways... Big Grin

Maybe I'll let some dude at the range fire them off......Devil


 so my invite for"Take a friend to the range day" just hit the mail, AYE!!
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: May/21/2014 at 06:19
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Haha!!!
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