I consider both casting and reloading to be bad weather shooting activities. Therefore here in Ohio January and February tend to be my reloading and casting times. I started with Lee molds in the 70's and still use many. However I watch for Lyman and other iron molds at yard sales and flea markets so have slowly replaced aluminum molds I commonly cast for 4 hole irons. Although my favorite 45 Colt mold is an old single cavity Ideal mold that I think predates 1900.