I've got a Littleton. They are finicky, you have to keep yours temps controlled, and you need clean lead. The drippers are tiny very small particles will plug them up. With a little experience you can make some pretty good shot, not like the stuff at the store but pretty good.
I melt my lead and make ingots in muffin tins, for me a half muffin tin provides the best results in my dripper.
They are frustrating to start out with, but as you learn they work way better.
Have fun with it.