Happy New Year! & 410 slug?

Happy New Year Y'all!

Question what should I use for a 410 Slug?

Also...
...if I have over 100 lbs of bulk cast lead, ? ingot ? hardness ? amount, how could I melt it to make a seemingly acurate bullet lead?

Thanks, Denny

i would bet lee makes a mold for the 410.
now to melt the lead all you need is a heat source, i use a cook stove and a cast iron pot.
a ladle of some sort is needed also.
thats really all there is to it.