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.
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.