Primer Crimp Removal


January 31, 2008, 11:57 AM
I'd appreciate it if someone could explain this process to me, The only decrimper/swager that I've been able to find is from RCBS but that's fine -- I just can't visualize the process so if someone could tell me, I'd appreciate it.

If you enjoyed reading about "Primer Crimp Removal" here in archive, you'll LOVE our community. Come join today for the full version!
January 31, 2008, 12:02 PM
I use the hornady primer pocket reamer in a drill it works great, is cheap , part # 390750 for small primer large is 390751 around 9.00 each

January 31, 2008, 12:08 PM
The RCBS Swager uses an internal rod in the die station to support the case from the inside. The swage goes in the press ram instead of a shell holder.

At full travel, it goes into the primer pocket and swages, or displaces the crimp back into the case-head were it came from.

A sliding metal cap over the ram knocks the case of the swaging stud on the down-stroke.

January 31, 2008, 12:19 PM
If money isn't a concern I highly recommend the Dillon Super Swage 600. You just slide the case onto the guide rod and pull the handle. It is much faster and I thought easier to set up than when I was using the RCBS.

January 31, 2008, 12:52 PM
I use the case neck chamfering tool chucked into a drill press to remove the crimps from about 5,000 cases each year. It is very fast.

January 31, 2008, 12:53 PM
...I highly recommend the Dillon Super Swage 600.



January 31, 2008, 12:57 PM
Don't have one yet but I'm going with the Dillon Super Swage.


January 31, 2008, 12:59 PM
I've heard that the Lee chamfer tool can be used to remove the crimp. How much effort is required, and do you have to be careful not to remove too much material?

January 31, 2008, 01:20 PM
Yea money's an objection but I can't argue with that dillon!

January 31, 2008, 01:43 PM
I bought a new RCBS swager a couple of months ago. The swager for 223 was not machined to final dimension and would not fit in the press ram. Plus the threads on the post that goes inside the cartridge to back up the web, were so sloppy the post that the post was tight against the side of the upper unit.

RCBS sent new parts at no cost. The new anvil fit and post was better but I still had to carefully guide the cartridge onto the post and then raise the swager into place. Made for a very slow operation for 300 pieces of brass.

Because the brass was mixed, not all of the crimp ridges were smoothed. So...I had to run that little Lee chamfer tool around every one. Thank goodness you olny have to do this once.

Couple of weeks ago, I bought a used Dillon Super Swage for $40 bucks at a gunshow. It required massive cleaning since the last owner must have smoked three packs a day and exhaled every puff on the Dillon. I then found that the eccentric had gauled and needed to be smoothed out. Took about an hour to put it back into shape. That said its a heck of a tool.


January 31, 2008, 05:04 PM
+1 Dillon Super Swage 600. Mounted mine on a piece of 2x4, then I can sit it across my legs and operate while watching the TV.

January 31, 2008, 05:13 PM
Did anybody suggest Dillon? Well worth the money I paid for mine. Great product, also does other military brass beside .223

January 31, 2008, 05:32 PM
I use the RCBS had thought about the Dillon but just haven't found a good deal on one yet.

The RCBS is good for 45acp but is a PIA for 223. After you get it down the 223 goes pretty good but you have to line the case up with a rod inside the die (that you can't see unless your standing on your head) with 45acp you can almost throw the case into the die.

If you enjoyed reading about "Primer Crimp Removal" here in archive, you'll LOVE our community. Come join today for the full version!