[ARCHIVED THREAD] - Partial resizing in AR

Posted: 11/7/2011 11:02:09 AM EDT

Has anyone tried this with success in a .223/5.56 AR15?

Posted: 11/7/2011 11:48:06 AM EDT

[#1]

I've never tried it, but you might want to shut off the gas system 1st.

Gig 'em,

backbencher

Posted: 11/7/2011 12:29:47 PM EDT

[#2]

I've done it a bunch. I usually set up my Lee resizing die for +0.003 inch compared to full resizing. Works great, and the brass lasts long. I usually fire them all in the same gun, but buddies have fired these reloads in their ARs with perfect feeding, so far.

Posted: 11/7/2011 1:04:35 PM EDT

[#3]

Quoted:
Has anyone tried this with success in a .223/5.56 AR15?

I guess I do not understand your question. Do you mean neck only sizing?

Posted: 11/8/2011 5:24:56 AM EDT

[#4]

It's possible to partially size the full case. On my AR, the shoulder typically gets pushed out to +0.008-0.010 (compared to a fully sized case) when fired, and I size it back to +0.003-0.005 (compared to a fully sized case).

Posted: 11/8/2011 7:28:05 AM EDT

[#5]

Quoted:

Quoted:
Has anyone tried this with success in a .223/5.56 AR15?

I guess I do not understand your question. Do you mean neck only sizing?

That would be great if I was able to get away with it. But I dont think I could.

I was thinking a partial FL.

Posted: 11/8/2011 8:00:51 AM EDT

[#6]

I size to set the shoulder back 0.002 inches. That provides good function and good fit. I've never had a lick of a problem in any of my bottleneck autoloaders.

I would not neck size, with one exception, I neck size new brass to straighten the necks and set the neck tension.

Posted: 11/8/2011 1:10:05 PM EDT

[#7]

FL resize while controling shoulder bump. http://www.brownells.com/.aspx/lid=12897/GunTechdetail/Gauging_Success___Minimum_Headspace_and_Maximum_COL

[ARCHIVED THREAD] - Partial resizing in AR

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[ARCHIVED THREAD] - Partial resizing in AR

[ARCHIVED THREAD] - Partial resizing in AR