I didn't want to waste copper cups by casting to bring the mold up to temperature, so I preheated the mold by placing it quarter way into the molten lead for 60 seconds, and then I started casting.
The bullets dropped freely from the mold with the cone shape sprue still attached.
This method eliminated several time consuming steps; no more having to trim the cups to length, and no more having to drill a hole in the bottom of the cup.
After the bullets cooled, I used a small side-cutter to snip away the sprue.
Finally, each bullet was placed into the pound-die and pounded to final shape. The small irregular nose snips, are ironed away by this last step.