I am new to casting. I understand melting and pouring lol

But as to the correct mix of lead to zinc, how to and when to lube them...sizing them is necessary...etc?

Been reloading a long time so I am not a total newbie but this is obviously a new skill to learn.

Here's some good info to get you started

Los Angeles Silhouette Club

Lyman Cast Bullet Handbook

No Zinc. Lead, tin, and or antimony. Take a look at Castboolits.gunloads.com for a wealth of information.
Good luck,
Rick

the Lee no 2 book has a lot of good info on casting . and it is priced well