Which shoulder bump gauge do you use for 6mm BR ?

[Remington243]

I have the Hornady aluminum, the sinclair stainless, and the Hornady Headspace bushing kit.
And what is the angle of the shoulder of the 6mmBR cartridge . I am not sure which one is measuring in the best area. I'm not sure if the angles of the gauges match the angle of the cartridge shoulder.

 

[shoot4fun]

Whidden dies come with either a .350 or .375. Actually either should give you a good measurement.
Hornady says .350 for the 6BR Remington and it is only slightly different from 6BR Norma.

 

[Remington243]

Thank you, that one seems to fit well.