If you choose to use Comet, rinse them
real good before further processing. Abrasives and chemicals in the Comet prolly arent any good for brass or dies or gun chambers...
Personally, I won't go to much more trouble than plain corn cob or walnut for media, and I won't get excited about anybody that does. My brass is clean, somewhat shiny but doesn't shoot 1/10 minute of angle better than dull brass. My dies will last longer than me, prolly. I don't need to impress anybody at the range with my ultra shiny, glossy ammo, I know how good it is and usually I'm the only one to see it. I haven't cleaned a handgun case's primer pocket in nearly 25 years, just ain't necessary, so I have little or no intrest in dropping over $200 to get started cleaning with SS pins.
I can remember when
real shooters' brass was mostly dull (reloaders mostly, before tumblers/shiny brass became a necessity) and usually the only folks using shiny, virgin looking brass were cops and new shooters...
