OK, I finally got the lead and can melt, etc. Anyway, right now I have a lee mold for the 458 diameter with 340 gr. flatnose. It's a tumble lube so I don't need to worry about that. I got the 457 sizer from lee but my question is:
What do I need to attach the gas checks on the bullets? Where can I find them and what gas checks do you recommend? I plan on using it on an AR 15 chambered in 458 socom.
Thanks for your insight and help to a starting out caster.