All the tank parts( or 95% of them) I cast are in aluminum. The aluminum track castings I have I did not cast; these were made for Thomas Wittgrebe in Germany. Casting tracks and drilling them is one of the most mind numbing, boring things one can do in building a tank. I cast a set in zamack for my StuG III many years ago, 25+ to be exact and I'll never do it again..
As it is I have probably 400 pz 3 castings to drill... I'd pay real money to have someone else do it...It is a winter function when I absolutely positively have nothing else better to do.
Jerry