gage test of sized 9mm


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AIM
March 8, 2010, 06:15 PM
After sizing a number of 'once-fired' cases with mixed headstamps a small number (4/100) failed to fully enter gage. Visually they all look fine. Is this normal?

Thank you,
AIM

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243winxb
March 8, 2010, 06:19 PM
If brass not fired in your firearm, yes normal. The web area might be larger than your chamber. Correction, Lee does NOT make a Bulge Buster for the 9mm as of now.

Walkalong
March 8, 2010, 07:39 PM
I usually get a 5 to 10% (A guestimate only) failure rate with sized range brass. I am using a Wilson case gauge. Sounds normal to me. I just toss em in the scap bin. Too much free range brass to fool with brass that may (or may not) have been overstressed.

http://www.thehighroad.org/attachment.php?attachmentid=114165&d=1264566765

rfwobbly
March 8, 2010, 10:17 PM
I agree with Mr. Along.

There are all sorts of over-power hot loads for 9mm out there. Some of these stretch the case at the base. You can buy gear to size the entire case, but as available as 9x19 brass is, it's hardly worth the cost or effort. And, although the size may get shrunk back down, that doesn't necessarily "heal" the crystalline structure of the metal.

Just toss the rascals !

jmorris
March 8, 2010, 10:39 PM
Get a casepro and your brass will be 100%.

AIM
March 8, 2010, 10:52 PM
Thanks for the replies. I think tossing the rejects is the way to go.

chris in va
March 8, 2010, 11:27 PM
Run all your range pickups through a magnet too. Might be surprised.

jmorris
March 9, 2010, 12:08 AM
Run all your range pickups through a magnet too. Might be surprised.

Yep the S&B 9mm is just brass plated steel.

billybob44
March 9, 2010, 12:09 AM
Get a casepro and your brass will be 100%.
OK-What is a casepro??

bds
March 9, 2010, 12:37 AM
I think tossing the rejects is the way to go.

Don't toss them away. I keep a bucket for scrap brass (including spent primers which are made of brass too) and recycle (they pay by the pound)
- The High Road way :D

Puddin99
March 9, 2010, 12:56 AM
Looks like a full on sizing machine.
http://www.casepro100.com/index.html

jmorris
March 9, 2010, 12:58 AM
OK-What is a casepro??

It’s a machine that roll sizes the brass making the rim and extractor grove back to factory specifications. The shell plate and chamfer on the dies keep you from sizing the case completely and push through sizers don’t clean up the extractor grove. Here is a link to photos and videos of one that I automated. http://s121.photobucket.com/albums/o213/jmorrismetal/reloading/casepro/



http://i121.photobucket.com/albums/o213/jmorrismetal/reloading/casepro/DSC02028-1.jpg

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