Never cast a bullet in my life, but thinking of starting so I'm sure their will be lots of trial and errors. That being said , I did a search for ".38/.357 SWC 158 gr mold" and wound up somewhere and lots of folks were singing the praises of the Lyman 358477mold. Went to the lyman sight and it is listed as a 150 gr mold. Am I missing something? I would like to cast .38/357 158 gr. and .44 240 gr. and need some guidance on mold selection. How much weight variation can you expect assuming a consistant lead mixture and would the mixture be the difference between 150 and 158 grs.?