Priming Error

[drdarrin@sbcglobal.net]

I typically weigh the components and then check for errors by weighing the finished cartridges. For some strange reason this one would not balance on the scale when placed upright



[IMG][/IMG]



I prime with an RCBS single stage press and I'm guessing I placed the primer in the primer holder incorrectly, then didn't notice the error until I had a finished cartridge. Didn't take much pressure on the decapping die to pop it out but the primer itself is worthless.

I've had this happen when priming on my RCBS press as well. I catch them by running my thumb over every one to ensure the primer is fully seated. Then I'd place them in the loading block upside down so I can visually inspect them. Now that I use the RCBS hand priming tool, it happens much less often but I still use the same QC technique.

If your press uses a priming arm, look closely at how the primer sits in the primer cup on your press. notice it sits a little above the cup? You're likely catching the top of the primer on the bottom of the shell holder as you move it into position.

Are you using an auto primer feed or single loading the primers into the cup? Single loading, you will eventually foul a primer with contamination from your fingers, plus IMHO, it's a PITA. using an auto primer feed, the last 4-5 primers in the tube can easily flip 90-180 degrees. Yes, I've seated primers upside down. My QC method catches them before proceeding.



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[Mayor McRifle]

Just one of many reasons I drop each finished cartridge into a Wilson case gauge and run my thumb over the primer before dropping it into the ammo can.

[five.five-six]

I probably get 1 out of a 2 to 3 thousand on my 1050. Dissemble it and move on, it will happen again.

Same, but then again I have my kids fill my primer tubes. I should probably deduct the 3 cents from their allowance.

[stilly]

Same, but then again I have my kids fill my primer tubes. I should probably deduct the 3 cents from their allowance.

Deduct a nickel and teach them a lesson...

[tonyjr]

1st - I now dry fire the case . I tried punch out one and the pin / decapper stuck in ceiling .
I have had so many problems with priming , I now do the hand priming method , you can clean both the primer pocket and flash hole + check the case mouth with a reamer .
I used to buy the cheapest primers [ maybe 25-30 years ago ] but now I only use CCI .
There are probably just as good or better primers for sale for almost everyone carries CCI and T buy them by the brick when possible .