Weird marks on case after resizing. Update!

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tacticalII

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I just tried out my new RCBS Competition dies and the re sizer left these weird marks on the case. Does it not like the Hornady lube? I made sure the vent hole wasn't plugged.
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Not a big deal. As long as the brass went fully into the die, it's all good. Throw the brass back into the tumbler for an hour or so and those marks will be gone.
 
looks like it was caused by the handle jerking along, rather than running smoothly.

Can you caused by a flimsy mounting/table, too-little lube, technique, etc.

Happens too me on MG fired x51 cases that are oversized, especially when I skimp on the lube.

was it hard to extract from the die?
 
It's Lapua 223 brass fired once in Shilen barreled 700. The brass spent a few hours in the tumbler. I wasn't to worried since I can't feel the marks. It is jerky going in but comes out pretty easy. I tried more and less lube with out much change but wondered if it was the Hornady one shot lube. I've heard people complain about it but it always worked for me.
 
To me it looks like rings in the chamber that were smoothed out by the resizing die.
Since the shiny circular marks.
I could be wrong.
 
Mount the press SOLID on a SOLID base, bench.
Use a good lubricant, like sizing wax, or automotive STP, very sparingly.
Should end the trouble.
 
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