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  #1  
Old 05-14-2021, 10:14 PM
Patriot Patriot is offline
 
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Default Shortest allowable 5.56/.223 brass

Hey guys.

Here is the Dilemma, I know the Trim to length is 1.750". I always save my brass for reloading BUT the once-fired factory loaded brass I picked up that is Federal is 1.744", could that be reloaded(it functioned fine without any malfunctions what so ever as the factory load.

Let me know if any of you know of a minimum case length.

I had found out before that military accepted shorter than the trim to case length in the 30-06 for the Garands...

Patriot
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  #2  
Old 05-14-2021, 11:17 PM
D the D D the D is offline
 
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It is usable. 0.006" is only half the thickness of the average 223 case neck. Pretty small.
It will affect crimping if you set your dies up for one length and your brass is all over the place.
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Old 05-14-2021, 11:21 PM
Patriot Patriot is offline
 
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Thanks for the information!

Patriot
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  #4  
Old 05-14-2021, 11:34 PM
missilegeek missilegeek is offline
 
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Quote:
Originally Posted by D the D View Post
It is usable. 0.006" is only half the thickness of the average 223 case neck. Pretty small.
It will affect crimping if you set your dies up for one length and your brass is all over the place.

Crimping is generally not necessary.
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  #5  
Old 05-15-2021, 12:35 AM
lapriester lapriester is offline
 
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There is no problem whatsoever unless you mix that brass with longer "trim to" length. In that case there will be a difference in neck tension that could effect accuracy to a slight degree. You think that once fired brass is short? Pick up some Speer nickle once shot. I get 4-5 loadings with it before it even approaches normal trim length of 1.750.
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  #6  
Old 05-15-2021, 05:27 AM
milprileb milprileb is offline
 
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Quote:
Originally Posted by missilegeek View Post
Crimping is generally not necessary.
This is entirely true but the myth of crimping is enduring...as is Elvis sightings.
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  #7  
Old 05-15-2021, 08:53 AM
RVN 69-70 RVN 69-70 is offline
 
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Default Yep

Quote:
Originally Posted by milprileb View Post
This is entirely true but the myth of crimping is enduring...as is Elvis sightings.
There is always one "joker' in the crowd.
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Old 05-15-2021, 04:00 PM
rcolarco rcolarco is offline
 
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Friends don't let friends crimp 5.56 rounds.
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  #9  
Old 05-15-2021, 05:59 PM
HighpowerRifleBrony HighpowerRifleBrony is offline
 
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I've accidentally gone down as far as 1.725". Was still shooting high-X cleans on the MR-31. Just more soot on the cases.
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  #10  
Old 05-15-2021, 09:09 PM
mycanoe44 mycanoe44 is offline
 
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Interesting thread here (post #9). I'm pretty sure I've seen that 1.740 minimum before.

https://www.snipershide.com/shooting...length.142264/

I usually weight sort my brass into groups, then find the shortest case and trim them all in the group to that length. Shorter than 1.740 would probably go into the scrap bucket. I stopped picking up .223/5.56 and 9mm a while ago as I have buckets of them.

A couple times I lucked out and showed up just after city and county LEO qualification day and there were hundreds of nice all LC brass. They all stand in the same spots and the cases were all in nice piles. They used to police their brass but not anymore.
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