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Odd single case length, fired RUM brass.

I have about 100 pieces of 375 RUM brass that I cycle through, and they are all 3 or 4 times fired.

They are Norma 7mm RUM necked up. I had to turn off outside neck donuts after the second firing, rounds would not chamber.

So far, I have not needed to trim any of the cases. 7 RUM necks up about 25 thou short, there is still 16 thou to go on the longest of them.

Except 1. One case is 2.864" . Max is 2.850.

It also missed the neck turning, but has no outside donut.

Peculiar, considering it's from the same packet as the others.

I noticed purely by accident. This case did not make the clearance between the long drop tube and shellholder I had rigged up.
 

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