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6/9/2006 1:52:59 PM EDT
I have a question, I know that greasing the piston is a NO-NO, but in order to get the gun powder residue off, I use powder solvent to clean it, first off, i was wondering if thats okay and is it okay if I can use my .30 cal brush to clean the inside of the piston?
6/9/2006 5:16:48 PM EDT
[#1]
I use solvent on the OUTSIDE of the piston to wipe it down, but I generally don't like to get it down in the piston bore.  I use the appropriate hand drills to get carbon out.  If you don't want to spend the money on the drills with the neat little handles, you can just buy the right drill bits.

#15 Bit (.180") for the small bore

"P"  Bit (.323") for the large bore and gas plug

Don't go to Lowe's, Home Depot, or Northern Tool trying to buy these individually....they'll just look at you funny and try to tell you drill bits come in fractional sizes, not letters or numbers

Find a machine tool place or an independent parts house.

DL3
6/9/2006 5:31:10 PM EDT
[#2]
This works for me,and is how I clean with the specific part and tools used..

Sadlack....TIN NM Piston.

Sadlack... Piston Cleaning tools.

Take a 12 gauge cleaning patch and center it with a Q-tip into the big hole end of the piston...push it into the hole and insert till it bottems out..........

Scrub the piston on the outside with hoppes #9  with an old brush until clean and your and happy with results.

Pull the Q-tip and patch.......... use hand tools for internal cleaning.

HTH.

6/10/2006 12:07:10 PM EDT
[#3]
i have a specific drill bit type tool.

brownells has it.
6/10/2006 4:17:35 PM EDT
[#4]
You can use brushes, but you'll need a small one to get up into the semi-round portion.  It will take you a LOT longer than the appropriately sized drill bits.

Ty
6/11/2006 1:42:31 AM EDT
[#5]
I use CLP for mine, when all carbon residue is gone and I want to slap it back into the gas cylinder I spray it down with parts cleaner, let it dry, insert and torque gas nut.
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