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 Cleaning and Preparing Fired Cartridges

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Cerwyn
Cerwyn (Site Admin)
Cerwyn (Site Admin)
Cerwyn


Number of posts : 11090
Age : 65
Location / Country : North Wales
Registration date : 2008-07-20

Cleaning and Preparing Fired Cartridges Empty
PostSubject: Cleaning and Preparing Fired Cartridges   Cleaning and Preparing Fired Cartridges Icon_minitimeSun Sep 07, 2008 10:56 am

Cleaning and Preparing Fired Cartridges


Arguably the biggest and most labourious chore we'll come accross, cleaning cartridges after firing has to be it!
The fact is though, that if your cartridges aren't cleaned properly and cared for, your model gun will not work properly.

This is a 9mm Marushin MP40/UZI cartridge after being fired once. If all th black soot and deposits aren't cleaned off immediately the cartridge will corrode quickly and will not function properly.

Cleaning and Preparing Fired Cartridges Marush10

Cleaning and Preparing Fired Cartridges Marush11



There are a few different methods you can use, but I find this method the easiest and the least work so ....

Tools for the job are:

UltraSonic Cleaner


Cleaning and Preparing Fired Cartridges PbucketCleaning and Preparing Fired Cartridges Dsc00165

Cleaning and Preparing Fired Cartridges Dsc00166
Cleaning and Preparing Fired Cartridges Pbucket

Polishing Machine

Cleaning and Preparing Fired Cartridges Pbucket
Cleaning and Preparing Fired Cartridges Polish12
Step 1.

Dismantle your cartridges and discard the fired cap.
Remove any loose dirt and soot with a mascara brush
Cleaning and Preparing Fired Cartridges Pbucket

Step 2.

Place all the cartridge components into the UltraSonic Cleaner, then fill the basket with cold or slightly warm water and 1-2 cap fulls of James "Sea Clean" cleaning solution.  A little washing up liquid would do if the "Sea Clean" isn't available. 



Cleaning and Preparing Fired Cartridges Dsc00161

Cleaning and Preparing Fired Cartridges Pbucket

Switch the Cleaner on and let it run. My machine runs in 3 minute bursts so I found that 3, 4 or so bursts plenty to get most of the dirt off.

You'll be surprised how dirty the cartridges are!
Cleaning and Preparing Fired Cartridges Pbucket

Cleaning and Preparing Fired Cartridges Dsc00162


Sometimes it's worth changing the water and letting them run again

Step 3.

Pour the cartridges out through a kitchen sieve so you don't lose the internals down the plug hole... (Yes, I have lost a few parts before today)

Step 4.

Dry the cartridges on some kitchen roll or a towel. If you're in a hurry, blow dry them with a hairdryer

Step 5.

Place all the cartridge components into the Polishing Machine. Mine was designed to take 300 real brass cartridge cases so I have been putting anything up to 100 complete cartridges into it.

Cleaning and Preparing Fired Cartridges Pbucket
Cleaning and Preparing Fired Cartridges Dsc00163

The polisher vibrates and tumbles the cartridges through a medium of crushed and treated walnut husks. Leave the machine on for a couple of hours while you get on with something more interesting.

Step 6.

Pour the contents of the polisher into a colander or similar and sieve the polishing compound out.
Cleaning and Preparing Fired Cartridges PbucketThe compound can be re used over and over again so pour it back into the machine's bowl.

Cleaning and Preparing Fired Cartridges Dsc00047
Cleaning and Preparing Fired Cartridges Polish13

All the components will be highly polished and gleaming. I've found that rubber O rings used on MGC cartridges are undamaged by the polisher. If used every time, minor nicks and dents on Cartridge Rims are smoothed away but it obviously won't deal with more serious damage.

If you're storing them, a light spray of silicone oil won't go amiss.

Cerwyn


Last edited by Cerwyn on Mon Aug 07, 2017 4:52 pm; edited 3 times in total (Reason for editing : images converted to servimg)
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Cerwyn
Cerwyn (Site Admin)
Cerwyn (Site Admin)
Cerwyn


Number of posts : 11090
Age : 65
Location / Country : North Wales
Registration date : 2008-07-20

Cleaning and Preparing Fired Cartridges Empty
PostSubject: Re: Cleaning and Preparing Fired Cartridges   Cleaning and Preparing Fired Cartridges Icon_minitimeMon Aug 07, 2017 4:44 pm

Updated and images now on servimg

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Cerwyn

Hobby collector of Replica model guns and Militaria.
also member of Living History Reenactment Groups.
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