Is anyone lead casting bullets for 300/221 ?

[este]

Hi,

I'm new to reloading and the fireball AR I want to build will be the first rifle I reload for.

I know a guy locally to me that cnc machines bullet molds for lead casting. I read somewhere that since lead has a higher specific gravity then say copper or steel that the required twist rate could change.

Is anyone making their own whisper bullets ? Any advice as far as lube coating them ? I had read somewhere that lead bullets don't need to be coated as the lead is soft enough to slip through.

I'm guessing this isn't so uncommon. But I figured I'd ask.

Also, if I'm going to have him make me a special mold, is there anything to look for as far as shape (esp of the tail area?) ?

Thanks!