223 cases that are 1.740-1.750 [Archive] - Glock Talk

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FiremanMike
04-15-2014, 12:13
I ran a bunch of 223 spent brass through my sizer to get it ready for trim and found several that were under 1.750 (my trim length). Have any of you had any issues with loading cases that were between 1.740-1.750? I'm not loading precision rounds here, if that matters.

jr05
04-15-2014, 12:29
You will be fine between 1.740 and 1.750" trim lengths using your current COL specs. Is this once fired brass? I have seen Federal walmart brass come in as little as 1.730"

What dies are you using? Some dies like the RCBS x-dies require a trim length of 1.740" to start off with anyway.

Boxerglocker
04-15-2014, 12:30
No issues load them up, most commercial .223 is less than 1.750 new.

dkf
04-15-2014, 12:46
All my .223/5.56 brass gets trimmed to 1.740" to work with my X-die.

SAAMI specs on case length of .223 Rem are 1.760" -.030"

http://www.saami.org/PubResources/CC_Drawings/Rifle/223%20Remington.pdf

fredj338
04-15-2014, 12:57
All my .223/5.56 brass gets trimmed to 1.740" to work with my X-die.

SAAMI specs on case length of .223 Rem are 1.760" -.030"

http://www.saami.org/PubResources/CC_Drawings/Rifle/223%20Remington.pdf

^^THIS^^ A 0.010" diff in neck length means nothing unless you are using the 'X' die.

PCJim
04-15-2014, 13:12
If you're loading projectiles with a cannelure and use the cannelure to determine bullet seating depth, set your bullet depth using a proper length case. Otherwise, you'll be fine.

Hoser
04-15-2014, 14:11
Heck I purposely trim mine to 1.740.

You will be fine.

FiremanMike
04-15-2014, 14:40
What's an X-die? (dodges the shoes being thrown at me)

Taterhead
04-15-2014, 17:41
What's an X-die? (dodges the shoes being thrown at me)

It is an RCBS sizing die that has a mandrel as part of the decap/expander ball stem that keeps brass from growing. To use the dies, you first size with the mandrel screwed out (not engaged). Then do an initial trim to 1.74". Then after that, subsequent re-sizing with the mandrel engaged slows case growth.

dkf
04-15-2014, 18:05
What's an X-die? (dodges the shoes being thrown at me)

Reloading: RCBS X-Die Complete Tutorial - YouTube

FiremanMike
04-16-2014, 06:40
Hmm, I have reservations.. What's the opinions around these parts about that die?

F106 Fan
04-16-2014, 07:39
I think the reviews and experience of reloaders on this forum have been positive. I bought the die but I haven't used it yet.

In the beginning, I was concerned about how long it would take to resize thousands of .223 cases. And to have to do it every time would take a lot of time. So, I bought the die.

In the meantime, I set up a toolhead on my 650 to size and trim. Since I can process the cases at about 1400 per hour, I haven't needed to try the die.

One toolhead to size and trim, another to reload. Works for me.

Maybe someday I'll try the die.

Richard

ColoCG
04-16-2014, 07:53
All my .223/5.56 brass gets trimmed to 1.740" to work with my X-die.

SAAMI specs on case length of .223 Rem are 1.760" -.030"

http://www.saami.org/PubResources/CC_Drawings/Rifle/223%20Remington.pdf

I also 2nd this. I have no problems with .223 brass trimmed to 1.740" for the x die. in fact. I am in the process of trimming a batch of a few hundred now.

Taterhead
04-16-2014, 09:33
I think the reviews and experience of reloaders on this forum have been positive. I bought the die but I haven't used it yet.

In the beginning, I was concerned about how long it would take to resize thousands of .223 cases. And to have to do it every time would take a lot of time. So, I bought the die.

In the meantime, I set up a toolhead on my 650 to size and trim. Since I can process the cases at about 1400 per hour, I haven't needed to try the die.

One toolhead to size and trim, another to reload. Works for me.

Maybe someday I'll try the die.

Richard

Ultimately, that is the way to do it. That Dillon electric trimmer is on my wish list. Then a Super 1050 for swaging primer pockets! I'm not at the shooting volume to justify it yet though, but the toolhead mounted trimmer is on the short list.

F106 Fan
04-16-2014, 10:39
Ultimately, that is the way to do it. That Dillon electric trimmer is on my wish list. Then a Super 1050 for swaging primer pockets! I'm not at the shooting volume to justify it yet though, but the toolhead mounted trimmer is on the short list.

That's actually the way I am doing it today. I started with the two toolhead approach on the 650 but to deal with the primer pockets, I now do the the resize and trim on the 650 and the reloading on the 1050.

I moved my .45 ACP loading from the 1050 to the 650. There isn't much of a difference in speed but having a press that swages primer pockets is exactly the right thing for .223.

Richard

Colorado4Wheel
04-16-2014, 11:55
Hmm, I have reservations.. What's the opinions around these parts about that die?

To many it's like magic and works great. To others they hate it.

fredj338
04-16-2014, 12:55
Hmm, I have reservations.. What's the opinions around these parts about that die?

I set a test batch of 20 aside to track. Thru 8 reloads, no significant case length stretch. I am running them thru an AR, so they get FL sized, max headspace in most guns. I am happy with never having to trim after the initial case prep.

cheygriz
04-16-2014, 20:11
I just pop the Dillon case trimmer into my old Texan "C" press, run the case into the trimmer and call it good.