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iwottopq
12-04-2018, 07:36 AM
Hello to all.
I am a enthusiast on shooting eith a Swiss K31 in 7,5x55 caliber but...I have a problem.
How I can clean the primer pocket of Berdan brasses?
I add a pic of the dirty removed with a screwdriver but I think that not is the right way...
Thanks in advance.
Nino

dale2242
12-04-2018, 08:52 AM
Wet tumbling with stainless steel pins is the best way, if you have that option.
It will clean the inside and outside of your cases, including primer pockets..dale

beemer
12-04-2018, 08:55 AM
Tumbling with wet stainless pin would probably work the best if that is available.

Can you file a screwdriver to fit the primer pocket and cut a small notch in the tip to fit the anvil post. That would probably remove most of the debris. I have never loaded berdan primers but I would think you need to be careful of damaging the anvil.

I had a K31 and played with it a good bit, they are generally very accurate rifles and very well made. I had a hard time matching the accuracy of the Swiss surplus ammo. Hope you enjoy that rifle.

Dave

XDROB
12-04-2018, 10:09 AM
I agree stainless tumbling will ln do the job.

Sent from my SM-N950U using Tapatalk

WebMonkey
12-04-2018, 11:13 AM
security torx driver.
i forget which size fits but the security type fit over the berdan anvil.

easiest way to manually clean berdan pockets.
otherwise as above, tumble it.

good luck

airone46
12-04-2018, 11:48 AM
Ultrasuoni (costa meno della pulitrice ad aghi) o spazzolino metallico fatto con un pò di retina d'acciaio fine avvolta su un tondino fissato al trapano! Se ci entra puoi provare con lo spazzolino a fili d'acciaio della RCBS
https://www.brownells.it/PRIMER-POCKET-BRUSHES-Primer-Pocket-Brush-Small-RCBS-Small-Rifle-Small-Pistol-749000769
o infine con un solvente dei depositi carboniosi (ottimo quello della Montana X-Treme)
http://www.montanaxtreme.com/products/?id=1&product=BoreSolvent
Oppure li sabbi: contenitore con piccolo foro sul fondo e pieno di sabbia, messo davanti all'ugello dell'aria compressa!

iwottopq
12-04-2018, 03:43 PM
Hello to all and thanks for your replies.
Unfortunately I have not a steel media tumbler or a ultrasonic cleaner. Also...the berdan anvil in the primer pocket is so easy to damage...so I am finding a soft way to do this job.
For Airone46...in the above reply there is the cause becouse I would non use the sanding system or the steel brush...
Thanks again to all.
Ciao
Nino

jsizemore
12-04-2018, 07:21 PM
Try this:

http://castboolits.gunloads.com/showthread.php?83572-Citric-acid-brass-cleaner

NyFirefighter357
12-04-2018, 09:31 PM
Convert them to boxer

https://youtu.be/AkKJfvMyuDg

https://youtu.be/qFC7opOiwQY

https://youtu.be/LQ5oOBixAgc

country gent
12-04-2018, 09:51 PM
Look at some various fine wire cables and copper wire. use a small point scribe or ice pick to push in the center making a depression a couple twists with this should clean quickly

Omega
12-04-2018, 10:34 PM
Are stainless steel pins and lemishine (citric acid) available to you? Some people just soak the brass in lemishine without tumbling with decent results, but placed in a sealed plastic container you can shake it up a bit, or leave it in your trunk, for better results.

lead-1
12-06-2018, 02:02 AM
When I reloaded a bunch of Berdan brass I could get PMC Berdan primers for a good price, still have a couple hundred. I just used a scribe and ran the point around the pocket and the burnt residue just flaked out with two or three rounds of the point.
I was really surprised how well and how easy they cleaned up that way. I also bored a hole in the point of a LEE deburring tool that allowed the point of the tool to clear the anvil so I could remove any primer pocket crimps. A couple turns and the crimps were gone.
I still have everything set up to reload my Bredan 7.62x51 brass.

lightman
12-06-2018, 12:31 PM
I'll be another to suggest the RCBS brush. If thats not available a short piece of stranded electrical wire should work. Any electrician that you can encounter on the street would probably give you a few feet of scrap. I'm thinking that #10 or #8 would be about right.

iwottopq
12-06-2018, 03:29 PM
Hello and thanks to all for the replies.
Ciao
Nino

mdi
12-06-2018, 05:04 PM
If you can't clean "mechanically" (wet tumble, pocket cleaner, or pick) look at jsizemore's posted link. A soak/slosh in a liquid cleaner will probably get them clean enough and maybe a quick brushing with an acid brush (but I like the security torx driver idea, don't have one handy to check).