New 7mm Dakota brass prep?

[elmerdeer]

I just recieved my new 7mm dakota brass from dakota, It is made by Norma, what prep should I do to it so it can be ready for loading? I have a sinclair tool for deburring and chamfering the inside of the flashhole, is this good to do?
I also noticed that this tool makes the flashole slightly bigger will this create a problem of pressure?
Thanks
Elmer

 

[Ernie]

I do an extremely light clean-up with K&M outside neck turning tool--Usually only touches some of the neck mouth and the neck should juncture.

 

[Winchester 69]

Norma flash holes are drilled and require no preparation. For hunting rounds, straightening and chamfering should do it.