resizing issue wit .223


November 19, 2008, 05:56 PM
I just finished loading a batch of .223 rem and noticed that about 50 cartridges out of the 300 don't seem to have been fully sized. I noticed that the necks of these cases only show marks from my lee dies about halfway down the neck. I don't have a case guage but was wondering if anyone has experienced this and wether or not they are safe to shoot. thanks in advance.

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November 19, 2008, 06:58 PM
Unless there was an issue with those 50, like the press ram not extending to full stroke.

I think your size die needs to screw down a little more.
Adjusting so that sizing stops just short of the case shoulder, for a bolt action rifle.

For FL sizing on semi-auto's, pumpaction rifles, they might need to contact the shoulder and give it a little 'nudge' back. So they chamber easier and the action can lock fully.

November 19, 2008, 07:09 PM
Based on a thread I just started about .223 brass, let me be the first to tell you get that case gauge ASAP. I have NO doubt that gauge (along with the help of posters here) has allowed me to learn more about sizing than any other tool in the shed.

November 19, 2008, 08:58 PM
Ditto on case gauge.
I had originally wanted one in .223 so I would know the ammo would fit any AR that was in spec. I quicky found it was essential and I am getting them for ever caliber I reload or plan to reload for even my .270 bolt gun.

November 19, 2008, 09:13 PM
supertech, I would think that if they chamber in the rifle, they will be safe to shoot. Were they fired originally in that rifle or was it new brass or perhaps range pick ups?


November 19, 2008, 10:47 PM
These were range pick ups. I think I just didn't lower the ram all the way on these cases, causing the issue with the partially sized necks. They are being shot out of an AR. Is there a way to check if they will chamber safely? If not, what case gauge are you guys using.

November 19, 2008, 11:52 PM
I have Dillon & L. E. Wilson.***731***8868***9505***

November 20, 2008, 11:24 AM
+1 on the case gage. I use mine a great deal and it's an instant check on how well (or how poorly) your sizing die is working.


November 20, 2008, 04:07 PM
If the cases are range pick ups, they may have been fired in a full auto rifle, which often stretches the case. I had this problem once and now measure all of the casings when putting them into use.

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