Lube outside of necks with bushing dies?

Is lube required outside of necks when using bushing dies?
I have never lubed the outside of necks regardless of the type of die being used…
I used to use graphite powder to dip the entire neck into when forming up or down using tapered buttons, but all it did was mess up the brass and die, stopped doing so pretty quick, there was no need for it, still isn't.

Cheers.
 
I roll my cases on a felt, lightly impregnated with 1:1 coconut oil / IPA mix. Wipe it off as I'm putting the case in the press. The body, shoulder and neck all have a film on them now. No build up if crud in the die and zero dented shoulders in probably a decade or more.
 
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