556 military brass

The old primers should come out easily whether crimped or not. I would swage them and then reprime them.

Since you have a swager, just use the swaging tool to check the primer pockets. If the tool can be inserted into primer pocket just using finger strength, even if it doesn't go all the way, it should be good enough to be able to seat a primer from my experience (using a RCBS swaging tool). If the swaging tool can't go into the pocket, you will have to swage the brass before reloading.

Agreed, even though they deprimed easily they probably still need to have the crimps removed.The easiest way would be to just run them through the process anyway. Then you will know they are OK.

It’s better to do it and not need it, than to not do it and need it.

Trying to seat primers in military brass without swaging the primer pockets is an exercise in futility!

After setting up you swaging process be sure to swag a few and then seat a few primers to be sure the crimp is removed completely for ease of seating. You'll thank me later!

I recently swaged 100 pieces of mixed brass and a few (not military!) required a second swaging. After readjustment of the swaging die I redid all the cases. The primer seating process went "sooo" much smoother. I left the swaging die set up for further use.

All the best,

The primer crimp has to be removed, but you don't need a swaging tool. A crimp cutter will work and is less expensive. The best cutter on the market today is the RCBS primer pocket crimp remover. I've tried them all. Buy the cutter and a 8/32 thread coupling nut adapter and chuck it up in a variable speed drill in a padded vice.

Works really fast. I've been cutting crimps out of 5.56 cases since the mid 1970's. Second best cutter is the Horrnady.

It is true that a countersink, your chamfer tool, a phillips screwdriver or a pocket knife can be used among other things to remove primer crimps by cutting away metal. I prefer to swage the metal back in place. If for no other reason than there is more metal there when done and will keep the primer pocket from expanding as soon.
No matter, I might take the least expensive options first to see if they work acceptablely before investing in more stuff. Most already have the chamfer tool and an assortment of screw drivers and pocket knives so start there and see.

In a word: YES. There is usually a bit of the crimp in the primer pocket that'll ruin a fresh primer when seated...some of the time...best not to me crushing primers when seating...

FLIGHT762 said:

The primer crimp has to be removed, but you don't need a swaging tool. A crimp cutter will work and is less expensive. The best cutter on the market today is the RCBS primer pocket crimp remover. I've tried them all. Buy the cutter and a 8/32 thread coupling nut adapter and chuck it up in a variable speed drill in a padded vice.

Works really fast. I've been cutting crimps out of 5.56 cases since the mid 1970's. Second best cutter is the Horrnady.

Click to expand...

The OP has a swaging set up already and his question has to do with swaging!

I have both motor driven primer pocket cutters and swaging tools. Swaging is more consistent and doesn't leave brass granules to clean up and remove from the case prior to the next step!

Smiles,

All I can say is don't over do it. When I first started out with my Dillon swage I ruined a couple hundred cases by over swaging.

WB

This may be a “belts AND suspenders” answer....but this is what I tend to do;
Use the RCBS swager, and then break the edges of the pocket with a countersink.

I like that swaging reshapes without removing brass, but I’d still sometimes get a primer that would catch that hard edge. So now I just lightly put a bevel on it too.

I use the CH4D swager and it leaves a radius on the primer pocket opening. It is all done in one opperation.

Ironicaintit said:

This may be a “belts AND suspenders” answer....but this is what I tend to do;
Use the RCBS swager, and then break the edges of the pocket with a countersink.
I like that swaging reshapes without removing brass, but I’d still sometimes get a primer that would catch that hard edge. So now I just lightly put a bevel on it too.

Click to expand...

I do basically the same. It only has to be done once then I can reload it at least 6-7 times with easier priming so I think it's worth it.