by plant_one » Sat Aug 11, 2018 12:06 am
it would really only work on the lathe if you use a solid copper projectile most likely.
the jackets arent real thick on most of these bullets, and if you start shaving material off you're likely to cut thru - or at the very least weaken the integrity of the jacket and possibly affect terminal performance at impact.
as noted you can get cannelure tools that will give you the grooves you're looking for, and those as i understand only move metal around, not remove anything.