What is going on with my Dillon 650????

[mikeinla]

What is going on with my Dillon 650??? I have been reloading 9mm for the last year with no problems. Now almost every round has a slight "dimple" in the primer(see pic). What is causing this??????

[Rwnielsen]

I get the same thing on 45acp from time to time. Never really did investigate. Must have to do with the punch. Unscrew it and make sure it's clean

[Carsgunsandchics]

I had the same marks from my 550b when I had a fleck of dust on the seating ram and using federal primers. Same fleck of dust didn't leave marks on CCI's.

[bruce381]

chunk of powder stuck on primer punch clean and or polish it will be gone

[stilly]

Or you can always wash it away with tears...

[xfer42]

Its a speck of powder thats stuck to it. You can see it flattened out over subsequent primer seats.

[jericho89]

Ok this answer had been beaten to death... But I will add my 2 cents and say junk on your primer ram, clean it.

[Franksremote]

The primer seating punch loosens over time and can get out of alignment for depth. Check the primer seating depth if it's not gunk on the top of the punch.

[KeithET]

I have had this happen from time to time on my 550. In every case its caused by powder grains or an accumulation of crud from deprimed cases getting trapped on the priming post. This stuff can make all kinds of dimples and designs on the primers. Only way to fix is to clean the post off. Cleaning the machine periodically will minimize this.

KeithET

[Pablo5959]

Pack up that press and send it in.
With there customer service, they will polish the ram for you.

[jwest]

To the OP - as others have stated, this is common with the Dillon presses.
You have to keep them clean. Even a fragment of a piece of gunpowder can cause that problem.

I do a couple of things - I have some LED lights that I mount on the press to always keep an eye on things; plus have some clean, dry compressed air available to occasionally clean in between major press cleanings.

Also, if you take the primer ram out and have a Dremel, you can briefly use one of the finer wire brush wheels to clean off the ram - does it quick.

HTH,
jwest

[jericho89]

Heck if you have a flaw on the ram just call Dillon, tell them your issues, and they will gladly send you what ever parts you need free of charge

[mbauer67]

It's time to take the priming system apart and clean it, you have a piece of debris stuck on the punch. No big deal it's quick and easy

[mjmagee67]

OK this is a simple problem, there is a piece of powder or media that gets between the primer seating ram and the primer. It might be there for a few primers then it goes away until another piece gets in there. You can use a brush to brush the shell holder or blow it out with compresses air ever few 100 rounds. Personally I don't worry about it, I've never had an issue because of it. It's no big deal. I would get the same thing on my Lee CTP every once and a while.

[Spaceghost]

plus have some clean, dry compressed air available to occasionally clean in between major press cleanings.


HTH,
jwest

This is your answer.