RCBS Precision Mic for 300 PRC

[ck1a]

Apparently RCBS doesn't make a precision mic for the 300 PRC round yet. Will another caliber work for this, or do I need to get a Hornady LnL Headspace Gauge with bushings and the Anvil Base Kit? If I understand correctly, the mic is a bit more precise. However, I may be wrong, and would appreciate someone pointing that out, if I am.

 

[spife7980]

You’re wrong.
It would be neither more or less accurate.

 

[ck1a]

You’re wrong.
It would be neither more or less accurate.

Thank you! Since the gauges are available, and I know they'll work with the 300 PRC, I'll go that route!