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.
223 cases that are 1.740-1.750
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FiremanMike
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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.
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.
What dies are you using? Some dies like the RCBS x-dies require a trim length of 1.740" to start off with anyway.
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6,148 Posts
No issues load them up, most commercial .223 is less than 1.750 new.
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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 Remington.pdf
SAAMI specs on case length of .223 Rem are 1.760" -.030"
http://www.saami.org/PubResources/CC_Drawings/Rifle/223 Remington.pdf
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What's an X-die? (dodges the shoes being thrown at me)
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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.
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[ame="https://www.youtube.com/watch?v=TaKtwSorMoE"]Reloading: RCBS X-Die Complete Tutorial - YouTube[/ame]
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Hmm, I have reservations.. What's the opinions around these parts about that die?
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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
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
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8,275 Posts
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.
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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
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To many it's like magic and works great. To others they hate it.
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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.
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