[ARCHIVED THREAD] - sizing 223

Posted: 2/16/2010 2:21:35 PM EDT

I have a question, How much should the neck stretch when sizing. Example i measure case first 1.756 then size and measure again 1.761 is this excessive. I use rcbs lube. Lee die and lube inside necks.

Posted: 2/16/2010 2:59:30 PM EDT

[#1]

That's normal.

The brass is being pushed from the circumference into length as the brass is squeezed down by the die.

Posted: 2/16/2010 3:35:17 PM EDT

[#2]

Yeah, that's why rifle cases need to be trimmed.

1.760 is considered max case length for .223. Time to bust out the trimmer.

I trim to 1.750.

Posted: 2/16/2010 4:05:33 PM EDT

[#3]

Normal, time to trim and debur.

Posted: 2/16/2010 4:16:55 PM EDT

[#4]

Is it better to use the max length or the shorter length for reloading. Is the extra length better for neck tention.

Posted: 2/16/2010 5:23:31 PM EDT

[#5]

I trim them to 1.750, the minimum length for .223. That way I can get a couple of reloads out of them before I have to trim again.

No difference in neck tension between 1.750 and 1.760 as far as I can tell.

Won't matter one bit if you crimp. I factory crimp my plinking and blasting loads, don't crimp my match loads.

[ARCHIVED THREAD] - sizing 223

Armory Sponsor

Warning

Confirm Action

[ARCHIVED THREAD] - sizing 223

[ARCHIVED THREAD] - sizing 223