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Old September 17, 2018, 10:42 PM   #1
Prof Young
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Auto drum powder measure binding . . .

So I've used my auto drum powder measure for at least a thousand loads, probably a lot more. Love the thing. Suddenly it starts acting up. It sticks open it stick closed then it won't budge at all. What the . . . I start taking it apart to see what's broken when it occurs to me this is metal on metal. A few dabs of zero friction oil and it runs like new. Ta da.

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Old September 18, 2018, 06:04 AM   #2
TJB101
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Good to know, but what parts did you actually lube?
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Old September 18, 2018, 11:09 AM   #3
Metal god
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Quote:
it occurs to me this is metal on metal
Mines plastic on metal

Quote:
Good to know, but what parts did you actually lube?
This ^ When mine binds up it tends to be powder getting caught between the body and plastic insert . If not I blast the insides with graphite lube from a can .
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Last edited by Metal god; September 18, 2018 at 11:18 AM.
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Old September 18, 2018, 12:41 PM   #4
T. O'Heir
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Zero friction oil or not zero friction oil will contaminate the powder. Powder measures get cleaned, but not lubed.
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Old September 18, 2018, 10:47 PM   #5
Prof Young
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Just the metal parts got oiled.

Well, assuming all auto drum by lee are the same, the part that screws into the die has a metal tube in a metal tube with a spring wrapped around in there somewhere. I oiled the metal on metal part, not the powder measuring parts, and not inside the tube that the powder falls through. Worked well. Reloaded couple hundred more rounds today and it worked like it was new.

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Old September 20, 2018, 01:36 PM   #6
Reloader270
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Best way to smooth things up again is to dismantle the powder measure, the wipe it clean with a cloth and then powder it with graphite powder. No oil please!
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