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Too much crimp??

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cheaptrick View Drop Down
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    Posted: May/19/2014 at 12:55
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.  
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cheaptrick Quote  Post ReplyReply Direct Link To This Post Posted: May/19/2014 at 12:56
By "unsafe" I mean will there be an unsafe increase in chamber pressure.

Thank you in advance. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Bigdaddy0381 Quote  Post ReplyReply Direct Link To This Post Posted: May/19/2014 at 13:14
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. 

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Post Options Post Options   Thanks (0) Thanks(0)   Quote BeltFed Quote  Post ReplyReply Direct Link To This Post Posted: May/19/2014 at 13:18
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.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cheaptrick Quote  Post ReplyReply Direct Link To This Post Posted: May/19/2014 at 13:44
I'll probably just hammer 'em out and start over. Oh well.....

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Post Options Post Options   Thanks (0) Thanks(0)   Quote supertool73 Quote  Post ReplyReply Direct Link To This Post Posted: May/19/2014 at 15:20
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. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote SVT_Tactical Quote  Post ReplyReply Direct Link To This Post Posted: May/19/2014 at 15:23
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.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cheaptrick Quote  Post ReplyReply Direct Link To This Post Posted: May/19/2014 at 16:59
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.    
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Post Options Post Options   Thanks (0) Thanks(0)   Quote sakomato Quote  Post ReplyReply Direct Link To This Post Posted: May/19/2014 at 20:18

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

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Post Options Post Options   Thanks (0) Thanks(0)   Quote RifleDude Quote  Post ReplyReply Direct Link To This Post Posted: May/19/2014 at 20:41
Though it's a bit unsightly, I highly doubt it will cause any pressure problems, especially given he has a 5.56 chamber.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Bigdaddy0381 Quote  Post ReplyReply Direct Link To This Post Posted: May/20/2014 at 06:09
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.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Kickboxer Quote  Post ReplyReply Direct Link To This Post Posted: May/20/2014 at 06:46

You don't think much...

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

 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Bigdaddy0381 Quote  Post ReplyReply Direct Link To This Post Posted: May/20/2014 at 15:28
I would, who needs a face anyways... Big Grin
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cheaptrick Quote  Post ReplyReply Direct Link To This Post Posted: May/20/2014 at 16:32
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
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Post Options Post Options   Thanks (0) Thanks(0)   Quote hatton mann Quote  Post ReplyReply Direct Link To This Post Posted: May/21/2014 at 02:25
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.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Bigdaddy0381 Quote  Post ReplyReply Direct Link To This Post Posted: May/21/2014 at 05:47
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!!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote RifleDude Quote  Post ReplyReply Direct Link To This Post Posted: May/21/2014 at 06:19
Haha!!!
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