I reload myself. I would love to learn to cast bullets. I probably have 50 pounds of old lead fishing weights I could use. Can you point me to a good site to learn how to cast bullets.
Lots of good info on this site:
https://castboolits.gunloads.com/
and of course
https://www.midwayusa.com/s?searchTerm=molds
is a good site to purchase equipment and supplies from.
I would suggest that you go to:
https://www.youtube.com/results?search_query=cast+bullets
for lots of good how to videos to watch.
Fishing weights are almost pure lead which are good for pistol bullets because they are soft and easily conform to the barrel when fired. If you are casting rifle bullets then you need a lead alloy that is a little harder which old tire weights were good for. You can purchase antimony and tin to mix in with your lead or you can buy ingots that are already alloyed from our friends at Midway USA
https://www.midwayusa.com/s?searchTerm=antimony
The other thing you need to install on the end of your cast rifle bullets are “gas checks”. I make my own out of aluminum sheets that I have a couple of die sets to make, but you can buy copper ones that are already made.
https://www.midwayusa.com/product/1010192726?pid=381078
It is better to start off casting pistol bullets. I prefer molds that make six at a time, but they are more expensive.
Good luck, it is actually quite fun.