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Removing Berdan primers with RCBS Tool

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Zeliard
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Removing Berdan primers with RCBS Tool

#1 Post by Zeliard » Sun Jun 11, 2017 7:03 pm

How to remove a Berdan primer with the RCBS tool- By RAPIDROB
There has been many post recently about removing fired Berdan Primers. There seems to be a misconception that removing these primers are so hard to do.
It could not be further from the truth.
I will be showing you how to use the RCBS Berdan De-Capping Tool. It is in my opinion the best,fastest way to remove 99% of the primers you will ever need to remove. The other one percent were double crimped into the primer pocket and may need the hydraulic method for removal..
It is of the utmost importance that you read and comprehend the instructions that come with the RCBS tool. Failure to do this will result in destroyed cases and broken,expensive picks.
First off,the tool pries,cams,levers out the fired primer after the primer has been pierced by the hard steel pick. You want to place the pick into the dent of the fired primer. If the dent is off center,you want the dent closest to the pick tip,not towards the rim of the case.
The pick is levered down and through the dent and inside of the Berdan primer. As you continue to apply force to the lever the pick is moved slightly to the side of the primer pocket. This breaks any normal crimp of the primer cup. The lever is pushed to the end of it's stroke and the pick is cammed upward removing the primer as the pick rises.
The amount of force required is about the same as using a bottle opener.
While the RCBS tool is designed to be used in both hands at the same time,I have found over the last 50 years it is better to hold the tools "case mandrel" in a padded vice. It is just so much easier and frees up your other hand to aid in setting the tools claw.
So the first step is to hold the mandrel in a padded vice or other means you may come up with. You can hold it in your other hand as well but your wrist will get tired very quickly.
Image
After you have held the mandrel make sure you have room to swing the tools lever.
Use your free hand's trigger finger and keep the claw in the extractor grove or under the rim. While this is not 100% needed,it really helps the pick bite into the fired primers dent.
I'm showing you me doing it with one hand because the other hand is holding the camera.
Image
Make sure the primers dent is closest to the pick. This allows the pick to dig under the largest amount of the primer cup.
Image
Once you feel the pick dig through the primer, continue to keep the lever moving. you will "bend" the primer away from the pocket walls and start to move the primer upward.
Image
At this point you will know if you have adjusted the pick to its proper depth. You will only need to do this one time per caliber of the cartridges you want to deprime. You do not want the pick to touch the Berdan anvil "tit". You want to just clear it. This is what the two Allen's are used for in the tool. 99% of all problems are caused by the user not understanding how to make these adjustments.
If the pick tears the surface of the primer only rather than removing the spent primer, rotate the case 180 degrees and try again. You can keep rotating the case 90 degrees until you remove the primer. In most cases, the pick is a little too high. 1/2 more turn of the "pusher" Allen is usually enough for it to catch.
You push the lever all the way down and out pops the fired primer.
Image
(sorry its out of focus a little)
There will be some debris in the primer pocket. This is normal as the Bradan Primer has foil or some other type seals that leves crud behind. Notice if you have crimp stabs or rings. This is important that you remove them. If you don't you can be hurt! If the new primer hangs up as it is seated,the primer can jump onto the Berdan tit and fire! The two holes will not let all of the primers force out and can cause the case to fly off of the shell holder hitting you in the face!
I use a Berdan case "cricket". This tool will remove the crimp and allow the safe seating of the new primer.
Image
Once you have removed the crimp you will have a nice beveled edge to guide the new primer into the cup.

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Re: Removing Berdan primers with RCBS Tool

#2 Post by professrh » Sun Jun 11, 2017 8:16 pm

Thank you for posting this, Zeilard. I found it useful back when I was learning to do this.

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Re: Removing Berdan primers with RCBS Tool

#3 Post by samsplacci » Mon Jun 12, 2017 2:38 pm

For your viewing pleasure, diopter on this forum has a youtube video on decapping using the RCBS tool.

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Re: Removing Berdan primers with RCBS Tool

#4 Post by professrh » Sat Jun 17, 2017 12:20 pm

Berdan Decapper is on sale right now at Midway.
https://www.midwayusa.com/product/24598 ... oducttitle

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Re: Removing Berdan primers with RCBS Tool

#5 Post by Esu_1985 » Sat Jun 24, 2017 1:12 am

Has anyone tried this hydraulic piston method?

https://www.youtube.com/watch?v=Q0q0E4GtSa4

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Re: Removing Berdan primers with RCBS Tool

#6 Post by professrh » Sat Jun 24, 2017 10:05 am

Esu_1985 wrote:
Sat Jun 24, 2017 1:12 am
Has anyone tried this hydraulic piston method?

https://www.youtube.com/watch?v=Q0q0E4GtSa4
I made one with materials I picked up at the big box hardware store. Quite affordable. Took it out in the yard, decapped a couple of dozen GP11 cases, and got soaking wet. Went back inside and ordered the RCBS decapper. At least, that's how I remember the sequence of events.

It's possible that my hydraulic decapper was not built to spec, or that my technique was really just that bad. Whatever the case, since buying the RCBS tool I have not looked back.

YMMV.

--Prof

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Re: Removing Berdan primers with RCBS Tool

#7 Post by lifeon2 » Sat Jun 24, 2017 9:18 pm

To much work for me I just hunt til I find the boxer stuff

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Re: Removing Berdan primers with RCBS Tool

#8 Post by AMraider » Sun Jun 25, 2017 5:04 pm

I have had great luck using the RCBS tool.

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Re: Removing Berdan primers with RCBS Tool

#9 Post by garra » Sun Jun 25, 2017 7:43 pm

I tried the hydraulic method on some Werndl cases I had, got soaking wet, but I got them out. Have any of you converted a Berden case to a boxer case, like was mentioned in the video?

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