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 What 9mm die to use for resizing?
50cal  [Team Member]
1/16/2011 6:07:25 PM
Been using a Dillon carbide die for sometime to resize 9mm brass. Sometimes it still doesn't get rid of the little "smiley face" at the base of the brass. 90% of the brass sizes fine.
I use a stainless Dillon case gauge to double check the finished rounds. Usually cull the smiley face peices out just to run through the 9mm AR. Would love to get rid of the what I suspect to be Glock fired rounds with an unsupported chamber.

I have the sizing die as far down to the shell plate as possible. Still have the unsightly rounds sometimes. What die do some of you use to to fully resize the 9mm brass?
Thought about a roll sizer, but don't want to add this extra step to the process.

Thanks.
rg1  [Member]
1/16/2011 11:08:48 PM
I'd take the barrel from the pistol and use it as another case gauge. Maybe they will do fine in your pistol AS IS? I have not had any problems with my brass or range pick-ups in 3 Glock 9MM's using a standard RCBS sizing die. For a die to size further down on the case, the Lee Undersize Die will do the job or Lee's push thru die.http://egw-guns.com/store/index.php?main_page=product_info&products_id=40
http://www.leeprecision.com/html/catalog/bulgebuster.html
dryflash3  [Moderator]
1/17/2011 10:42:20 AM




Last time I loaded a 1k batch of range brass, I had 8 rounds that didn't gauge. Using a Dillon gauge on every one. Top right round had a inverted primer.

This batch was loaded on a SDB. All brass was Win range pick ups.

The 9 rounds were pulled down and resized with Hornady 9mm dies on a Rockchucker.

Checked good with case gauge after sizing, then were loaded, rounds again checked good in gauge.

With range brass, you just never know what your getting, and your batch sounds very different than mine.
borderpatrol  [Member]
1/17/2011 11:02:12 AM
Evolution Gun Works (EGW) sells a custom undersized Lee die in 9mm, .40 S&W and .45ACP. It's .001" smaller than standard and basically reduces your fired case to "as new" dimensions. Reasonably priced and it works well on Glocked brass.

edited to add: It's called the EGW "U" die.
jonblack  [Member]
1/17/2011 11:17:17 AM
I have loaded thousands of 9mm rounds, 100% of them with range pick ups, using a LEE 9mm die set. I fire these in Glocks, with both stock and aftermarket barrels, and a 9mm AR. No problems after the die is properly adjusted.

I know you said you have your die all the way to the shellplate. Can you try to turn it in a little more (1/32 to 1/16 turn) to see if this doesn't help your problem?

jonblack
50cal  [Team Member]
1/17/2011 12:31:26 PM
I have the carbide Dillon die set down as far as it can go. Running the ram up with nothing in the shellplate shows the die actually pushing the shellplate away from it.

The suspect rounds will not chamber in my Beretta92 or the HK P7 PSP. Sometimes they chamber in the G17.

Will try a new sizing die as suggested above. The Dillon barbide dies work great in all my other pistol calibers. It was just a puzzler in 9mm.

Thanks all for the input.
jonblack  [Member]
1/17/2011 12:47:28 PM
Originally Posted By 50cal:


When you run a piece of brass up in the die, does the die still touch the shellplate?

From the looks of it, if your die does not properly size it may be out of spec. Have you called Dillon about the issue? If something is wrong with the die they may replace it.

jonblack

Chris_1522  [Team Member]
1/17/2011 1:27:15 PM
My plain, factory Lee dies work perfectly.

You can tell when you size a Glock fired case because it's a bit harder to size and there will be a shiny burnished area where the bulge was, but the bulge will be gone.
Counselor  [Member]
1/17/2011 1:40:13 PM
I tried several carbide sizers about 20-25 years ago for 9mm. Lee worked the best as it acomodated the taper of the 9mm case and I have used their sizer with a variety of other dies ever since. Other carbide dies attempted to size the base of the case to the same degree as the mouth and that would not work very well. I tried Lee, RCBS and Hornady. I have not tried Dillon, although since they are specifically made for progressive machines, I would assume that they have a nice rounded sizer die entrance that also would acomodate the tapered case.
50cal  [Team Member]
1/17/2011 1:51:39 PM
Yes, the Dillon carbide die has a beveled mouth. Pretty generous bevel too. That may be the source of my problem.
Will call Dillon and ask.
50cal  [Team Member]
1/17/2011 1:54:11 PM
Originally Posted By Chris_1522:
My plain, factory Lee dies work perfectly.

You can tell when you size a Glock fired case because it's a bit harder to size and there will be a shiny burnished area where the bulge was, but the bulge will be gone.


That is what I get, but the where it sizes away the bulge, it leaves a small lip. That is what catches in the chamber mouth of my pistols. The 9mm AR doesn't mind it though. The Olympic system seems to be generous in that regard.

pepe-lepew  [Member]
1/17/2011 4:21:11 PM
Toss the cases, the bases have bulged. There is no reason to reuse a case that has deformed that much. It is not a Glock problem otherwise I would have it in most of my 9mm cases.
Chris_1522  [Team Member]
1/17/2011 4:35:36 PM
Originally Posted By 50cal:
Originally Posted By Chris_1522:
My plain, factory Lee dies work perfectly.

You can tell when you size a Glock fired case because it's a bit harder to size and there will be a shiny burnished area where the bulge was, but the bulge will be gone.


That is what I get, but the where it sizes away the bulge, it leaves a small lip. That is what catches in the chamber mouth of my pistols. The 9mm AR doesn't mind it though. The Olympic system seems to be generous in that regard.



Oh I see...the Lee dies I'm using leaves no lip.

That said, if they're bulged that bad I think I might toss them, like the poster above me. That sounds really excessive.

I assume this was range pickup brass. Even a Glock should not have that loose of a chamber, especially not a 9mm Glock. Something is wrong with somebody's gun, I suspect!
OiRogers  [Team Member]
1/17/2011 11:12:38 PM
I use Lee dies for my 9mm as well... No issues with the unsupported chamber smile on my dies.

I have looked at the Lee Bulge Buster set-up, but none of my brass has had issue after running through Lee pistol dies.
The crimp dies seem to go about it differently from my Dillon dies. I'm curious if the Lee Sizing and FCD dies iron out bulges better than Dillons set.


Perhaps a FCD or Bulge Buster is in order?
jonblack  [Member]
1/17/2011 11:22:44 PM
Originally Posted By OiRogers:
Perhaps a FCD or Bulge Buster is in order?


Lee doesn't make a Bulge Buster for 9mm. I suspect it is because of the taper of the 9mm case.

jonblack
jonblack  [Member]
1/17/2011 11:26:00 PM
I was just thinking over this situation and remembering that many people said that Dillon dies are specifically made for progressive presses and that is why there is such a generous taper on the mouth of the die.

One hard core fix would be to grind off the base of the die so that you remove some of the taper. If required, you can always put the lock nut on the bottom of the toolhead. Obviously this is a last case workaround and I would only do this if Dillon says that is how their die is supposed to work.

The cheap and quick fix would be to put a LEE size die in and call it a day.

jonblack
50cal  [Team Member]
1/18/2011 8:35:46 AM
I may experiment with the Dillon die just for grins and laughs. But it sounds like a Lee sizing die is a cheap and effective way to solve this little problem.

Thanks all.
OiRogers  [Team Member]
1/18/2011 10:13:48 AM
Originally Posted By jonblack:
Originally Posted By OiRogers:
Perhaps a FCD or Bulge Buster is in order?


Lee doesn't make a Bulge Buster for 9mm. I suspect it is because of the taper of the 9mm case.

jonblack


Just noticed your correct.... only one I've had to use is the .40sw due to glocked brass.
My Lee 9mm carbide dies seem to polish out the bulge just fine....

The setup I saw being used for 9mm must have been a .380acp set... no wonder it ripped rims off about 1 in 50 cases.
ravinluna  [Member]
1/18/2011 10:58:57 AM
When I have a lot of bulged 9mm brass, first I size and decap it all, then i take out the decapping stem of my Redding titanium carbide die, Put a flat disc with stem into the shell holder. back off the die to allow the cases to be shoved into the die fully, then remove with a steel rod and hammer, time consuming , but I get cases that are sized all the way to the rim.
jonblack  [Member]
1/18/2011 11:19:37 AM
I see people going through a lot of work to properly size 9mm brass. Maybe I'm just lucky, but I don't do anything special. I just used a LEE die and it works for my stock and LWD aftermarket barrel.

jonblack
50cal  [Team Member]
1/18/2011 11:43:14 AM
Ordered a Lee die this morning.
Counselor  [Member]
1/18/2011 3:17:34 PM
For bulge removal on a 9mm case (that you cannot get out with a sizer die) I suggest the appropriate size Lee bullet sizer die using lubed cases. I have used this die to size .32 auto bullets down so they can be used in my 30 luger ammo. My estimate is that the cases are strong enough to push each other through the die. In any event, the die and set up is fairly cheap if you want to experiment. Check the dimensioned drawing of a 9mm luger cartridge for an above the grove dimension and then go a couple of thou. under for the right size die, there will be a little normal spring back after sizing.