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Dutchman195

Dillon Die 9mm not kicking the Primer Out

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I just moved my 9mm from my 650 to my 1050. In my 650 I loaded 9mm no problemo. Same gear on my 1050-problem

About 1 in every 70 cases has the primer not get knocked out, Then the swagger smashes it back up into the case. Wasn't so bad at first but getting progressively worse. 

I called Dillon and talked with the tech, who surprisingly wasn't that helpful. his solution was that 'its a known issue, just put the die as low as you can and deal with it.'

 

It is a factory Dillon decapping die. I've tried any combination of die as low as possible, die backed off a little, shellplate tight, shellplate loose etc. Nothing seems to change the problem. 

I have noticed that when this happens, the primer is barely hanging onto the shell, almost as if the it is BARELY not knocking it out, or the primer is stuck on the end of the pin and is getting sucked back up when. Pictures attached: How far the primer is out of the pocket after the case goes in the die, and 2 the primer getting wrecked by the swagger. 

 

 

Any advice? longer decapping pin?

Capture.PNG

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Edited by Dutchman195

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Have you tried taking the die apart and cleaning it ? Had a .22 case stuck on the pin once.

Ck for a broken spring.

Try a new decaping pin.(worn down not broken)

One of these has fixed my issues in the past.

Edited by AHI

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Theres a few things you can do. What is happening is that the primer is ejecting and staying stuck to the primer pin and getting pulled back into the pocket

 

You can file the pin down to an angle so that it cant ghet stuck

 

or switch dies to another brand. I switched to a mighty armory but now I have to lube my cases which I never did before

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2 minutes ago, m700 said:

 

You can file the pin down to an angle so that it cant get stuck

 

^^^^   That's the secret.     ^^^^^   :) 

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1 hour ago, Hi-Power Jack said:

^^^^   That's the secret.     ^^^^^   :) 

Like to a needle point? Just the very tip or the entire thing?

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58 minutes ago, Dutchman195 said:

Like to a needle point? Just the very tip or the entire thing?

Not to a point.  Just file around the edges so the tip is rounded instead of flat.

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Look at the tip of the decapping pin, see if the surface is rough or if the edges have a burr. Used to have same problem, rounded off the tip and polished it to remove sharp edges. No more primer pull backs.

 

Mark

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2 hours ago, Dutchman195 said:

Like to a needle point? Just the very tip or the entire thing?

 

No, grind a bevel on one side so it's non-symmetrical. About 45 degrees or so. Don't make the tip sharp. 

 

What happens is the primer does get punched out, but sticks to the decapping pin, then gets pulled back into the pocket on the return stroke. The idea with a non-symmetrical pin tip is if the primer does stick to the pin, it'll get pulled back towards the case at an angle, and will fall off instead of sticking in the pocket. 

 

This helps a lot with all of my progressive press dies. 

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RCBS, but the same idea.  It would push the primers out but the primer stuck to the tip, then as the shell casing moved downward it would pull the primer partly back into the pocket before pulling it off the tip of the pin.

 

I used a Dremel and cut off wheel to bevel one side a little bit, so it wasn't uniformly round/tapered anymore.  That's all it took.

 

 

IMG_0386.JPG

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Mine was doing the same thing. Bad!!! Like 20 out of 100. 

I took the die out. Hit the pin tip a few times with a file to bevel it all the way around. I’ve now gotten over 4K rounds through the press with Zero primer drawback. 

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On 9/13/2019 at 7:58 PM, mpom said:

Look at the tip of the decapping pin, see if the surface is rough or if the edges have a burr. Used to have same problem, rounded off the tip and polished it to remove sharp edges. No more primer pull backs.

 

Mark

My experience exactly.  My 650 would to leave an occasional primer partially in the case.  I called Dillon and the Tech I talked to was helpful.  He suggested smoothing the end of the decapping pin with fine sandpaper to remove any burrs and round the sharp edge.   Problem has never reoccured.

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I was having the same problem, I pulled the pin and filed a slight taper and smoothed it out with some Emory cloth. 

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The problem might be misdiagnosed above.  There are a couple of possible causes.  One is described above.  Another is the decapping pin got moved up into the die by some swaged primer pockets.  Lower the pin so the primer gets pushed completely out.

 

Lastly, I had the primer draw problem when I first started using my LnL.  I followed advice similar to that given above and it made the problem worse.  Hornady said to file the bottom of the pin flat, then just break the edge.  That cured the problem 100%.

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Thank you for everyone's help.

I ended up replacing the pin with a new pin and everything was smooth running from then. Probably pushed about 3k through the machine in a night and only had the primer stick in there once. 

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