OK, I'm seeing a lot of you are loading cast bullets. This is not 450 related but thought you could help. I picked up 1k .401 coated cast bullets to load for my 10mm. I've never loaded cast before but have loaded for 4 decades. Do I need to buy a sizing die and run these through first or am I good to go as is? These are Acme's and they say they are .401 already.
Thanks for the help
D