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press and die question regard coating on brass

Posted: 14 Oct 2015, 08:02
by nycmike718
I have been attempting to resize some brass. They have been cleaned using an ultrasonic cleaner. I have redding dies and a Forster Co-ax press. I used Hornady one shot lube, Imperial wax and iso/lanolin. And still the laquer is peeling off the cases. What could I be doing wrong? And I even bought a second set of dies to see if it was a die problem.

Re: press and die question regard coating on brass

Posted: 14 Oct 2015, 13:26
by GONRA
GONRA suggests:

Measure resized cases vs. factory ammo to see if the dies are copulated up.

If THAT'S OK, check centerline alignment of your press / dies / shell holder.
(Yeah its EASY TO SUGGEST but HOW DO YOU DOIT?)

MAYBE you can see if coating comes off on one particular cartridge case side - proceed from there.
Idea is to rotate shell holder to find a (possible) "sweet spot" to negate
any "off center tolerance" buildups on your particular mechanical assembly.

One would believe that Redding and Forster are First Class manufacturers, but who nos?

Re: press and die question regard coating on brass

Posted: 15 Oct 2015, 16:32
by nycmike718
It's funny but I thought I had figured it out. When the jaws close they seem to be holding the case at an angle. So I tried adjusting the jaws and it worked for a bit but it seems that every now and then it scrapes a case. It seems to not only take the coating off but it is actually scraping the brass. I have the adapter to use a shell holder and I will try that tomorrow. But If not I'm out of tricks. I hate to think that I did wrong in getting this press. Well at least when it comes to using it for 5.7.

Re: press and die question regard coating on brass

Posted: 16 Oct 2015, 06:06
by BriteLites
Possibly you could go the Lee Shell Holder. The one I got is much tighter the the others I have tried. Shell is held closer to verticle after I take my hand away. I never have to guide the shell into the dies. The one negative is, it is not cut out to allow for "popped" primers. When I change to the RCBS shell holder to process the shells with poped primers, it is very obvious the shell has a lot of play and needs to be guided into the dies. Mis-alignment on the up stoke causes what you described and distorted neck sizing. The up stoke causes what you described and distorted neck sizing.

I like the Hornady lube for reprocessing problem cases. If I'm not getting the sizeing or appearance after reprocessing the round, into the culls.

Re: press and die question regard coating on brass

Posted: 16 Oct 2015, 13:31
by GONRA
GONRA's NOT familar with tbe Forster Co-ax press or the unusual (to me)
"universal shell holders". BUT that's OBVIOUSLY yer problem!!!

Re: press and die question regard coating on brass

Posted: 16 Oct 2015, 14:21
by Rapier1772
GONRA wrote:OBVIOUSLY yer problem!!!
So rude! :p