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jjfitch - GONRA sez - Yer Lucky!
Here's an example: .25 ACP KBI PSP-25 copy of Baby Browning Beautiful CNC machining job!!!

BUTT- feed ramp was machined with a (rotary) end mill (why not?).
Eyeballed Just Fine - but its really was a "very fine file". (Microscopic circumferential SHARP grooves.)
Really copulated up my Prize Winning Handloads.

SO - grab a small grinding bit (“1/4” will do for .25 ACP) by the 1/8 metal shank
and LONGITUDINALLY stroke feed ramp so all scratches are LONGITUDINAL.

>>> Doesn’t have to win a beauty contest (who cares about SHINENESS?) <<<
Verked for me!
 
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