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My question is if I have 5.56 casings can I reload them to shoot in a .223 if I put the .223 load data in. I know you can't shoot factory 5.56 out of a .223 but had no clue about the reloading of them??
 

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My question is if I have 5.56 casings can I reload them to shoot in a .223 if I put the .223 load data in. I know you can't shoot factory 5.56 out of a .223 but had no clue about the reloading of them??
As far as I know you can. I have not been reloading for very long but I have been loading Hornady .224 60 gr. V-Max's in once fired Lake City Brass with no issues. The Lake City brass is 5.56 military casings. They shoot great out of my battle stick, so I don't think you will have any problems so long as you are using .223 load data. :)
 

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As far as I know you can. I have not been reloading for very long but I have been loading Hornady .224 60 gr. V-Max's in once fired Lake City Brass with no issues. The Lake City brass is 5.56 military casings. They shoot great out of my battle stick, so I don't think you will have any problems so long as you are using .223 load data. :)
Texasgunner what do you do for priming? Do you have to swage the casing?
 

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mymaro said:
Texasgunner what do you do for priming? Do you have to swage the casing?
The Lake City brass that I am using is already cleaned, processed and re-primed. I acquired 2,000 rounds of this stuff from TopBrass. Very very nice stuff.
 

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The dies are for .223. You can use 5.56 cases. The main issue I have found is length. 5.56 cases generally start off a bit longer than .223 and firing in a sloppy chamber (high round count machinegun) will stretch the case. You MUST check length and trim before loading. An over length case will cause major pressure issues.

Removing the primer crimp is easy with a swaging die. You can use a chamfer tool, but I do not like to remove metal from the vital base area.
 

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Not without modifying the cases as mentioned above. 5.56 ammunition should never be fired in a "true" 223 Chamber. The lead in the chamber is longer on the 5.56. and the 223 Chamber has a shorter lead. And also military ammunition has a higher chamber pressure. However the 223 Remington Cal. ammunition can be fired in the 5.56 chamber with no problem.

03
 

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I do not see trimming as "modifying". Nearly all bottleneck rifle cases must be trimmed after the first time they are fired. 5.56 is no different.
 

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Them thar shell casings just aint that damn expensive!

I wouldn't use them unless the head stamp matches the load.

Brass is just not so expensive that you need to risk confusing loads.
 
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