I’m going to need more precision than that. You think a straight razor would work? This ain’t for hunting rifles.I shoot mine against an axe blade at 20 yds.
Stationary vert belt grinder....tuned to perfection (those that know,do).Watch those fingers.Stand up bullet on table,grind away.Didn't work?...grab another.
A spritz of water on a "broke in" 100 G belt should do the trick.