HBN purity and Micron Size for bullet coating

[Markhor]

My question is for folks using HBN as bullet coating. What purity and Micron size are you using to coat your bullets?
Is 98% .05 Micron ok to use, I am able to get this size in small quantities.

Regards,
Ed

 

[mike in co]

go to the competiton only board and do a search..it was discussed there.
mike in co