Quote from Reloader on February 17, 2009, 3:40 am

cci primers are a bit oversized try to prime with winchester, remington, or federal on new brass. or try priming once fired brass with your cci primers. once you have seated and fired cci primers any other primer will seat with ease

Quote from Reloader on February 17, 2009, 9:08 pm

Thanks xd9, are the cases that I have already loaded and the primmers are sitting flush safe to fire, or should I play it safe and dissasemble? I only have the new brass right now. do cci's sit better in fired brass? thanks for the help.

Quote from Reloader on February 18, 2009, 4:30 pm

As long as the primers do not protrude above the head of the case, the ammo is safe to fire. Be aware that the first strike may only finish eating the primer; a second strike might be necessary to actually fire the cartridge.

Quote from Reloader on February 18, 2009, 9:21 pm

Thanks dillon, Do you think its the machine causing my problems or the new brass I,m using?

Quote from Reloader on February 19, 2009, 4:23 am

Thanks for the post dssschuler. I have been cruising several reloading
forums looking for a hint of a problem like this. I suspect there may be
more to this problem than meets the eye.

I will try being more specific. I have an older Dillon 550 rather than
the Square Deal. I work the poor thing a lot, but its great. I have
probably put between 20 to 30 K rounds thru it. Suddenly, I start to
see an issue with primers. I just finished priming a batch of 38 special
cases with CCI 500 primers. I then switch to 357 magnum cases, which
means no change to the shell plate, only the primers. I use the CCI small
pistol magnum primers for 357 cases. Wham ! Same problem you are
describing. Primers no longer seat slightly recessed. They seem to feel correct when seating, and bottom in OK, but some are slightly ABOVE just flush with the rim. I primed 50 prior fired cases and 50 new ones. Same problem times 100, meaning all 100 primers in the small box with the same
result.

The only problem with primers I ever remember was when a mount
bolt on the primer catch holder came loose. Wasn't the same symptoms but easy to check. Nope. Next check was to go back to the CCI 500 primers and more 38 specials. (shell plate not loose either) Ran 50 thru with primers all coming out perfectly recessed. (At least the same feel as
factory loads.) My conclusion is that the problem is not the Dillon and
probably not me. That leaves the suspect in my case to be the CCI
550 primers. Most of them are close enough to flush to cause me
no concern except that is just not the way I accept my own reloads.

I very recently bought new primers (Last month) Both the CCI 500
and 550 are new lots. The 500's seat normally. The 550's do not.
This is a puzzle I hope has a solution. Meanwhile, I will simply single shoot
the troublesome 357's. (Note, a test of 180 degree careful re-seating
of the trouble primers shows no improvement.)

Quote from Reloader on February 21, 2009, 12:18 am

I would do some measuring of components. Measure the depth of primer and then the hole it is going into. It is possible for primers or brass to be made wrong. Primer pocket uniformer might help but is a little bit of a pain.
Jay

Quote from Reloader on February 21, 2009, 2:49 pm

I think your right mroliver, the pockets in the top brass don't seem uniform. I'll have to get a uniformer. thanks

 

Quote from Reloader on February 26, 2009, 1:58 am

shot 50 of the reloads with primers sitting flush. No problems at all, every  round fired as usual.Hope now the brass has been fired the primers sit in a little.

Quote from Reloader on February 26, 2009, 6:53 am

After looking further, it appears mroliver77 has solved more than one problem here. Firing some of my cases does not solve the problem.
Since he says a uniformer can be a pain, I think this means its more
than just a primer pocket cleaner.

Have looked over the site a bit but do not see such an item here.
Does Dillon sell such a tool ?
Thanks everyone.