In a message of , John A. Fish (1:260/701) writes: 
 JA>I'm rather partial to a couple Thompson Center front stuffers of mine. 
 JA>How's that Ed's Red on black powder and Pyrodex residue?  
Pyrodex contains potassium chlorate as an oxidizer and causes the same type 
of pottassium chloride residue upon firing that the old military chlorate  
primers do, except that you have more of it.  Consequently, Pyrodex is more  
corrosive than black powder.
ER will remove Pyrodex residue effectively, but I still recommend you swab 
with two patches wet with plain or better, soapy water, followed by ER to 
make sure you dissolve all the chlorides, then the ER will flush them out.
The best thing is to mix a bit of water soluable oil, such as a fire 
retardant  hydraulic fluid concentrate such as Arco Emulsiplex, into your ER. 
 You only  need to add about 4 fluid oz. of the concentrate per gallon of ER. 
 It will
then form a stable emulsion with stirred slowly into a 50-50 ratio of boiling
distilled water.  The resulting mix has a color and consistency like Pepto 
Bismol and is a fine one-step cleaner-lubricant-preservative for black powder 
guns or for use in military weapons fired with chlorate primers.  Use of the 
ER-Water emulsion greatly cuts your cost per gallon, as you can buy "steam 
distilled" water in most grocery stores for a dollar per gallon.  Don't use 
bottled mineral water, as many of these contain mineral salts which could 
cause corrosion.  Use nothing but distilled water.
You can use other soluable oils intended for mixing water hydraulics or metal
cutting fluids as long as they contain no added chlorides, bromides,
sulphur or phosphorus bearing compounds.  You'll need to check the MSDS or
get something suitable for nuclear applications, such as Trimsol.
In Home Mix We Trust, Regards, Ed
  
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