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Correct dies for 6mmBR Norma ??

That good information, how long did the custom die take from order to receipt?

I did the same for my 308 Palma brass, shot it 4x and sized it only using the Whidden stock die and sent him the brass. He said I needed a custom die because the base wasn't being sized down enough. My custom die order just made it for the December production.
Look at Harrel’s precision dies
Does Harrels require 4x or 5x fired pieces of brass to make a die? I have 1x fired brass.
 
3 cases fired 3 x, there are several ways to accomplish this , one is to neck size fire and repeat. Another is to load powder and a 100% cotton ball or tissue stuffed into the case mouth then fire and repeat.
 
The main difference between Norma and Remington brass.in 6 mm Br is the shoulder. The Remington shoulder is 30 degrees and the Norma is 60 degrees.

You're looking at numbers and not applying it to the drawing. The 30 degree figure is measured to the bore axis of the cartridge. The 60 degree is the angle between the two sides of the shoulder (i.e. 30 degrees on one side, plus 30 degrees to the other.)
 

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