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Cleaning Primer Pockets


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The only time I clean pockets is when i run a batch of fresh 5.56 cases through the tumbler. I hit them quick with my pocket reamer in a small drill just to ensure that all the pockets are uniform. Once they have been reamed I will not do them again because I no longer have to worry about primers seating properly. If I did not have to worry about military crimped brass i would not do them at all.

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When I say ''clean primer pockets'' I am talking about depriming the cases before I throw them in my wet thumbler w/ stainless pins. When thats done then I resize and prime.

Looks like on the Dillion you deprime and prime at the same time. Thats what made me think why are they not cleaning pockets

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I am OCD, but I wet tumble with primers in to get the brass roughly clean, then de-prime, resize, (and trim if we are talking about rifle) and we tumble again to get the primer pockets clean and the brass REALLY clean.

Pistol and rifle. My loaded rounds are pretty.

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When I say ''clean primer pockets'' I am talking about depriming the cases before I throw them in my wet thumbler w/ stainless pins. When thats done then I resize and prime.

Looks like on the Dillion you deprime and prime at the same time. Thats what made me think why are they not cleaning pockets

Very few people deprime before tumbling. I tumble mine, deprime on a single stage to weed out bad brass, then run it through my 550 to load them up. With most people I think this is because getting media in the primer flash hole can cause problems with the press. Steel media from a wet tumble could really mess up your machine.

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For rifle I deprime /resize on an old single stage (also keeps the crap out of my Dillon) so I can check length and trim (Lyman universal trimmer) if needed kick the media out of the primer pocket etc. then it is into a bin to be loaded on the Dillon, for pistol I just load them up then again I don't reload quite the volume I used to.

Primer pockets other than removing crimp get no special treatment from me.I experimented with a few to see any accuracy changes with my S&W M-52 and saw no measureable differences.

John

P.S. I thought the wet/SS media cleaned primer pockets for you ? shows them nice and shiny on the website. you could always get an old single stage press and deprime before you tumble no need to worry about clogged flash holes so you should be able to load em up after that

Edited by Amerflyer48
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For long range precision rifle, a uniform hole at the bottom of the primer pocket makes for a consistent ignition for all rounds. For pistol, IMHO it's not that important.

BC

I deprime the cases before putting them in a sonic cleaner. Why? Gives me something to do, being retired leaves me with lots of spare time to fill.

Not retired yet but give me something to do in my spare time. And keeping a good open flash hole and clean primer pocket helps with ignition IMO as well.

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