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Old August 16, 2011, 06:42 PM   #1
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Join Date: February 5, 2011
Posts: 3
Flat spot on .45 acp cases.

I'm just getting started reloading . I have most of the equipment on hand ,
some on the way .
Today ,I went to the range and fired off a box and a half of Federal .45 acp
from a Springfield 1911 . After I got the brass home and inspected it , I
found a lot of them had a flat spot at the mouth . Is this normal ?
The Springfield fires great .
This is my first post on this forum .
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Old August 16, 2011, 07:10 PM   #2
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Who stepped on your cases???

Si vis pacem, para bellum
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Old August 16, 2011, 08:14 PM   #3
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If you look/stop this video, you will see how the ejecting case rotates out of the slide port and back toward the slide body. Depending on spring forces, power/load levels and slide inertia, you'll see how the cases can/do hit the rear edge of the slide cutout as they eject.

No big deal.
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Old August 16, 2011, 08:45 PM   #4
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Yeah, the cases are hitting the ejection port on the way out. It doesn't damage the brass in any way. When you run the brass through your reloading die it will come out perfectly round and in spec. No harm done.
It's easy to be wise, just think of something stupid to say and don't say it.
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Old August 17, 2011, 09:20 AM   #5
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It's common with the un-modified SA ejection port.
"all my ammo is mostly retired factory ammo"
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Old August 17, 2011, 10:20 AM   #6
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a lot of them had a flat spot at the mouth
When you re-size them most of it will go away, and anything left will go away when you flare them to load the new bullet.
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