Dehermit has the right idea!!!!!!!!!!!!!!!
Use more then one mold while casting.
If I am by myself, I will use 3 - 4 molds, depending on the temp. of the day, but with help it could be as many a 6 molds.
I personally like to cast with a partner, as with one person pouring and the other opening molds and dropping them into our quenching bucket, our casting volumn is greatly increased.
This past week, my current and new casting partner and I had two casting sessions, both 2 - 3 hours in length. My back won't take much more!
This was my partners first time with casting, so he was a bit slow to start.
But right from the start of the second session I had my work cut out for me to stay ahead of him with pouring.
We ran 5 molds during both sessions, and produced over 100lbs. of product during that 4 - 5 hour time period.
I have found casting from an open pot to be far and away faster then any bottom pour pot I have ever used or seen.
Check out the Rowell Bottom Pour Ladles, by Advance Car Mover co.
This is the best ladle I have ever used, and along with a good sized pot on my old Colman gas stove allows for a high and sustained casting rate.
At this point in time, I cast almost totally for handguns, and a high rate of production is more important then if I was in something like long range Black Powder competition.
If that was the case, a hundred quality bullets per hour might be a good rate from one large single cavity mold.
However, during these last sessions we were running one or two 6 cavity molds, two 4 cavity and one or two double cavity molds, producing over those two sessions bullets for .38/357, .40S&W, .45acp and three different bullets in .44, lots of them.
Using a larger pot, and having enough heat, allows for melting the sprews and adding ingets while still casting.
If I were not adding metal to the pot, I would need to turn the stove way down to prevent over heating or frosting, but adding cool metal to a large enough pot with enough heat under it, keeps my alloy at a good casting temp. with few stops needed during the total casting period.
Time to flux/skim is a matter of seconds when needed, the same for adding sprews or ingets.
Keep em coming!
Crusty Deary Ol Coot