Looking at RD molds and can't decide between the 350 & the 425???? I have rifles dedicated to all critters up to 300WM, And my new GBL is for anything & everything else (woods, camping, Alaska.. ect) So Am I crazy for wanting to go 425 with no good (real) reason? Any draw backs of the 425 that I'm missing? This will be my first mold and first attempt at casting so any info is much appreciated.