You may want to try posting your question in the Bullet Casting forum in the reloading section further down the list here on the campfire.

http://www.24hourcampfire.com/ubbthreads/ubbthreads.php/forums/18/1/Bullet_Casting

Loads of experts there I bet. Probably even a few with Martini's

Good luck,

Geno

The desert is a true treasure for him who seeks refuge from men and the evil of men.
In it is contentment
In it is death and all you seek
(Quoted from "The Bleeding of the Stone" Ibrahim Al-Koni)

member of the cabal of dysfunctional squirrels?