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chadn22 Rookie Member
Joined: Feb 03, 2008 Posts: 3
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Posted: Sat Feb 02, 2008 8:44 pm Post subject: how much crimp is needed on a 223 bullet |
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hey guys new to reloading. Trying to figure out how much crimp to put on a reloaded shell. Im shooting them in a ar-15 . I am useing a lee pro 1000.any help wouls be great. thanks Chad
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BHP9 Rookie Member
Joined: Dec 28, 2007 Posts: 4 Location: Ontario, Canada
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Posted: Sun Feb 03, 2008 6:11 am Post subject: Re: how much crimp is needed on a 223 bullet |
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You could use the Lee Factory Crimp Die.
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Stercus Accidit = Shit Happens in Latin. |
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Bushmaster Super Member
Joined: Jun 12, 2005 Posts: 11390 Location: Ava, Missouri
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Posted: Sun Feb 03, 2008 9:05 am Post subject: Re: how much crimp is needed on a 223 bullet |
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Just enough to remove the bell (if you belled the case mouth in the first place) and maybe a very light crimp. If the bullet has no cannelure and you crimp it too much you can cause the neck to expand and and cause the bullet to be loose. You may also distort the bullet. The neck tension on the bullet should be enough to hold the bullet without crimping. If the bullet is cannelured you can crimp the case mouth into the cannelure with no problems. Your regular seating/crimp die should do the job just fine. If you wish to crimp in a seperate operation I would recommend the Lee FCD (Factory Crimp Die)
I don't crimp my rifle cases except .30-30...
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d_hoffman Super Member
Joined: Feb 13, 2007 Posts: 696 Location: Chillicothe, Ohio
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Posted: Sun Feb 03, 2008 9:43 am Post subject: Re: how much crimp is needed on a 223 bullet |
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I don't crimp mine at all. If you size your cases properly you really don't need to. Like Bushy said, The neck tension is enough.
_________________ The best form of gun control...aim straight!!! |
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hermit Rookie Member
Joined: Feb 03, 2008 Posts: 4 Location: New York
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Posted: Sun Feb 03, 2008 12:58 pm Post subject: Re: how much crimp is needed on a 223 bullet |
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You should not have to crimp them at all unless your using a bullet with the cannler (SP)
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gelandangan Super Member
Joined: May 07, 2006 Posts: 6396 Location: Sydney Australia
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Posted: Sun Feb 03, 2008 4:39 pm Post subject: Re: how much crimp is needed on a 223 bullet |
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I have been using Lee FCD since were told to do so last year (when I ask about crimping too).
I would have to say that they are GREAT!!!
improves the accuracy a bit too..
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Do - Not try!
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Crackshot Super Member
Joined: Oct 23, 2005 Posts: 1693 Location: Mich
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Posted: Sun Feb 03, 2008 6:49 pm Post subject: Re: how much crimp is needed on a 223 bullet |
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If your dies are set up right and you have good neck tension, you do not need any crimp on 223's in an AR-15. I have loaded 1000's for me and my daughters for NRA high power with no crimps on 69gr and 80gr bullets. Its not that important with the 80gr bullet as you load them 1 at a time. but the 69's are capabal of jumping and tieing up your mag, and inturn, the rifle.
Also, I have loaded 1000's of elcheapo FMJ's with cannelure with no crimp and no problem.
_________________ The human mind is the weapon, the gun is just one of its tools. |
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chadn22 Rookie Member
Joined: Feb 03, 2008 Posts: 3
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Posted: Sun Feb 03, 2008 10:22 pm Post subject: Re: how much crimp is needed on a 223 bullet |
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thanks for all the help and opinions on crimping
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SingleShotLover Super Member
Joined: Dec 26, 2007 Posts: 1005 Location: Illinois
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Posted: Mon Feb 04, 2008 8:55 am Post subject: Re: how much crimp is needed on a 223 bullet |
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I know that this is a subject upon which there are a lot of differing opinions, but I never crimp bottle-necked cartridges. As mentioned, if your expander ball is sized correctly there will be plenty of neck-tension to hold the bullet. I can see the reasoning for the real big recoil generating cartridges, but .30 caliber and under is pretty much a waste in my experience. One of the very real drawbacks is that case length is even more critical with crimped cases to prevent uneven crimping pressure. If the case mouth is even the tiniest bit out of square or cases vary in the amount of neck length accuracy can be a problem.
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English Mike Super Member
Joined: Jan 08, 2007 Posts: 1709 Location: Whitehaven, Cumbria, UK
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Posted: Mon Feb 04, 2008 3:54 pm Post subject: Re: how much crimp is needed on a 223 bullet |
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Using a Lee FCD to give a medium crimp saw our .270 loads improve in accuracy by 25%+
I guess a lot is down to the individual rifle.
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