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I picked up a Super Swage more than 10 years ago, and have processed many hundreds of .308 and .223 brass with it. Incredibly useful!
Now, I'm looking at an OPPOSITE problem: I have some .308 match brass with the primer pockets starting to loosen up. I've got a lot of work in 'em, and would hate to have to "prep-up" a new batch of expensive brass to the same standard just for the primer pocket!
So I'm sitting here, staring at the Super Swage, and wondering...
If the swaging ram had a collar on it that tapered to an edge... I wonder if it could be turned into a Primer Pocket Tightener Upper! The collar would displace brass against the ram, which could be sized precisely to then drag/swage the pocket back to proper size when withdrawn.
Maybe an upgrade kit? :-)
(and if someone at Dillon wants to run with this idea, I hereby release all claim to the idea... but wouldn't mind a T-Shirt or something ;-)
Just idle doodling on a rainy afternoon!
Paul F.
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Posted by: dillon
Posted on: 2011-11-14 at 08:15:48 AM
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Once the cases have been fired enough to open up the primer pockets, there are most likely other issues that render the brass unsafe to reuse. Specifically, brass migrates from the lower inside of the case to the mouth, which requires periodic trimming. But this also weakens the case above the webbing, and will result in an eventual separation there.
To tighten the primer pocket would require some sort of roller-resizer, where the bottom of the case is squeezed by vertical rollers. This sort of equipment is used in some specialized equipment to resize the base area of some 40 S&W brass. I don't know if it would apply sufficient pressure to shrink the inside diameter of a primer pocket.
For now, I would recommend replacing the brass, as a safety measure.
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Posted by: efeist
Posted on: 2011-11-16 at 04:46:27 PM
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From a liability standpoint, I can see your point...
In my case, this brass has been neck sized only for it's whole service life, Neck turned, and gets carefully checked.
It's just the darn primer pocket
OK, OK.. I'm too cheap, I'll buy some new brass! :-)
It's the hours and hours of sorting, neck turning, weighing, flash hole uniforming, etc that I'd like to avoid.
In my case, this brass has been neck sized only for it's whole service life, Neck turned, and gets carefully checked.
It's just the darn primer pocket
OK, OK.. I'm too cheap, I'll buy some new brass! :-)
It's the hours and hours of sorting, neck turning, weighing, flash hole uniforming, etc that I'd like to avoid.
