When I was modifying some Lapua 6.5cm brass with the small flash hole, I used a nice brand new TiN drill bit to open the holes up from .060 to .065 or so. The flash holes did get cut nice and clean. But I was just doing that to accommodate the decap pins in almost all my dies.
But I really have no faith in primer pocket uniforming, flash hole deburring, etc. for the level we shoot.
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