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Old 11-19-2020, 06:30 AM
Racer X Racer X is offline
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Default Swaging military primer pocket question

likely getting the Dillon unit. Anyway, will running an iffy not crimped primer pocket through a swager reform the primer pocket to close to original dimensions? Just a general question.
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Old 11-19-2020, 07:09 AM
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It only shoves the crimp away.
An expanded primer pocket will still be an expanded primer pocket.
Iffy primer pockets are cases that should be thrown away.
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Old 11-19-2020, 08:59 AM
Ivan the Butcher Ivan the Butcher is offline
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noylj is correct! If a pocket is too big in any dimension it should be scrapped! However if the pocket was damaged by pushing brass into it or was formed too small in any direction, it can be "Uniformed" and there is a cutting tool for that.

Fired military brass is worth less than the time and tooling to Uniform pockets, but if you already have the tool, and nothing else to do, why not!

Not all pocket swaggers are to the correct dimension. I have an early 1980's RCBS that is fine for both size pockets, I bought one from the 20 teens and it won't move the crimps far enough out of the way!

Some people use a case mouth chamfering tools to cut out the crimp, I have seen lots of brass where this was over done and became "unsafe" (not supporting the primer walls) and can lead to "Blow Back" through the bolt. If you use a Uniforming Tool to remove the crimp, you still need to swage or chamfer the pocket mouth so it allows primer seating! For a few rounds not too bad, but when working with hundreds or thousands of brass, that is a lot of time. Also very strenuous in the thumb and fore finger! Been there, done that!

I see less and less crimped 45 ACP, more and more 9mm with crimped pockets. 30-06 and 303 British have about disappeared, 5.56 & 7.62 NATO, some of the brass quality isn't worth picking up (too hard and brittle). These are the woes of loading military calibers! Live with it or stick to commercial brass.

Ivan
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Old 11-19-2020, 11:04 AM
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The best way to do it is :
1. Swage the pocket on a press this moves the crimp away.
2. Use a crimp removing tool that cuts away what the swage doesn't get ... there is some spring back when a swage is used .
3. Finish the pocket with a Primer Pocket Uniforming Tool , this cuts all pockets to the same diameter and depth .

The truth is ...if you do all 3 steps you can save and reload brass Military cases . I don't know about any steel cases... my method works on brass and I've done thousands .
We could buy linked 30-06 belts of machine gun ammo , every 5th round was a tracer , back in the 1960's ... WWII Army Surplus ... lots of rounds on those belts that were 9 yards long ...getting them un-linked was fun ! I still have 30-06 brass after 50+ years of shooting .
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Old 11-19-2020, 02:23 PM
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Above posts correct; you can open a primer pocket, reform to remove crimp, but one cannot easily make a primer pocket smaller...
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Old 11-19-2020, 02:58 PM
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Quote:
Originally Posted by Racer X View Post
likely getting the Dillon unit.
Buddy has a Super Swager. Works nice. I came into a bucket of once fired LC brass and it knocks 'em out fairly quickly. Same with a grunch of .mil 9mm brass I came across.
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Old 11-19-2020, 03:57 PM
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My experience says forget the swager and remove the crimp metal. I use an RCBS trim mate that I've had for years and a Hornady pocket reamer. I have both large and small.

This method is far more effective for me.

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