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Old March 5, 2012, 11:42 AM   #1
iamdb
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FLR die bulging my brass

I have a 9mm RCBS Carbide FLR die that seems to cause a bulge at just above the head on my brass. I put the shell holder all the way up and screw the die down to touch. I also tried giving it an additional 1/4 turn after touching. I cant figure it out.
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Old March 5, 2012, 11:49 AM   #2
Zach W.
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If the brass was shot in an unsupported chamber, you might have to get a bulge buster die.

There is no way a sizing die can bulge the 9MMLuger.

Too much crimp could bulge it however.
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Old March 5, 2012, 11:55 AM   #3
iamdb
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it is most certainly knocking them out of round. Can't measure the bulge because the opposite side goes in.
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Old March 5, 2012, 11:56 AM   #4
Zach W.
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Then your die is out of round.
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Old March 5, 2012, 12:15 PM   #5
iamdb
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Hard to see but after resizing the fail the wilson check guage

seating leaves base of bullet very visible

These score marks are from one of the dies. Forgot to check which one.
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Old March 5, 2012, 12:57 PM   #6
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Something very wrong with those last 2 pics.

Positive you are using the correct dies?
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Old March 5, 2012, 12:58 PM   #7
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And the top pic looks like an insane amount of flare.

Are you using the correct bullet diameter?
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Old March 5, 2012, 01:04 PM   #8
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No flaring in the top picture. That is the sizer die only. I am positive the right caliber dies. The only thing that may not be right is the seater plug which says 38 RN. It came in a bag of 2 that says 38/9mm RN - 9mm TMJ. Bullets are Zero 124gr 9mm .355 FMJ
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Old March 5, 2012, 01:08 PM   #9
Zach W.
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Well for now I would just worry about the sizing operation.

Something major wrong. Those things have an hour glass shape to them.

They should be straight.

What is stamped on the sizer die?

Maybe you are mistakenly using the flare die and not the sizing die?
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Old March 5, 2012, 01:59 PM   #10
iamdb
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The sizer die has the decapping pin hanging out. I set below bottom of die 3/8". Has 9mm stamped on it. I can take pics when I get home.
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Old March 5, 2012, 02:03 PM   #11
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It's not flaring at the top. It's actually bulging on one side and set in on the other giving it a flared look. It gives the brass a look like the ram and die aren't lining up exactly. I made sure the timing was right on the press and as far as I can tell they are lined up as good as possible. Lee Classic turret. It appears to be bulging at 11:00 looking at the press head on.
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Old March 5, 2012, 02:17 PM   #12
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Have you used this die in this press before with no problems? Or is one or the other new to you?
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Old March 5, 2012, 03:37 PM   #13
iamdb
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New dies. New press.
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Old March 5, 2012, 04:55 PM   #14
243winxb
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9mm-RCBS Carbide Dies

Adjust the RCBS carbide FL die so there is 1/16" between the die & shell holder, or the thickness of a nickle coin. [COLOR="Red"] Never cam over with a carbide die, it may crack.

Last edited by 243winxb; March 5, 2012 at 07:04 PM.
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Old March 5, 2012, 06:27 PM   #15
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Does the loaded round chamber in your gun?
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Old March 5, 2012, 06:57 PM   #16
243winxb
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This photo looks like you expanded & belled/flared the case mouth to much.
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Old March 5, 2012, 06:58 PM   #17
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This photo looks like a damaged or defective FL sizing die, possible cracked carbide ring.
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Old March 5, 2012, 07:02 PM   #18
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The bulge in the brass at the bullets base is normal. The wall thickness of the brass has an effect on it. If it still happens, try a different brand of brass.
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Old March 5, 2012, 08:30 PM   #19
iamdb
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Quote:
This photo looks like you expanded & belled/flared the case mouth to much.
The cases were not expanded yet. this is just the sizing die. It's an optical illusion. It looks that way because the case bulge to the left and the divot is to the right.
Quote:
Does the loaded round chamber in your gun?
no they stick and need to be rammed out. They stick in the check gauge as well
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Old March 5, 2012, 10:13 PM   #20
243winxb
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Maybe take some measurement of your brass. See how it compares to SAAMI standards. Other wise, i dont know. http://www.saami.org/PubResources/CC...Luger%20+P.pdf
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Old March 5, 2012, 11:40 PM   #21
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You say this bulge appears at the 11 o'clock position in relation to the die? This may sound crazy but, try turning the shellholder 90° and see if it appears at the 5 o'clock position.

You all can laugh but I've seen defective shellholders do similar things.
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Old March 5, 2012, 11:52 PM   #22
iamdb
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Quote:
try turning the shellholder 90°
Genius! I will try that tomorrow.
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Old March 6, 2012, 10:32 PM   #23
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Quote:
Adjust the RCBS carbide FL die so there is 1/16" between the die & shell holder, or the thickness of a nickle coin. [COLOR="Red"] Never cam over with a carbide die, it may crack.
Not quite what RCBS said about carbide size dies.

Quote:
Install the sizing die into the reloading press. Install the shell holder and raise the ram. Adjust the sizing die so it touches the shell holder, then back off 1/16' inch or the thckness of a match book cover. tighten the locking ring with the adjustable wrench. Adjust the de-capping pin of the sizing die so it protrudes 3/16 inch below the face of the die.
Looking at pic #5,
Quote:
These score marks are from one of the dies. Forgot to check which one.
Figure out which die it is because this isn't normal.

Some times in a tapered case you might have a bulge near the base of the case. The case isn't pushed far enough in to the size die to take the bulge out. This has never affected the chambering of any 9mm I've loaded.
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Last edited by Tim R; March 7, 2012 at 12:10 AM.
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Old March 7, 2012, 12:16 PM   #24
243winxb
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Adjustment of RCBS tungsten carbide pistol dies

Tim R.
Quote:
Not quite what RCBS said about carbide size dies.
Over the last 40 years, RCBS has changed there description & method of how to set up a carbide die. Currently, the die should contact the shell holder when at the full up position. No cam over. The ram/shell holder should never bump the die, as it may crack. RCBS has also stated, there is no need to size below the bullets base, if the round will chamber. On a straight walled case, this is like neck sizing.
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Old March 7, 2012, 12:43 PM   #25
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And tapered cases sized in carbide dies always get the 'coke bottle' look after bullet seating.

The carbide is small enough to ensure adequate bullet tension.
It is smaller than required when you get below the bullet base.

Redding (IIRC) is bringing out a carbide die with two diameters of carbide inserts.
An upper carbide insert for the front of the shell and bullet tension, and a larger insert at the base of the die for the rest of the shell.

Last edited by brickeyee; March 8, 2012 at 12:40 PM.
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