I am new to casting, and in the process of assembling the tools. I need Keith style molds for .44 and .45, I was thinking about ordering the RCBS K-250 SWC and the 45-255 SWC two cavity molds from Midway , anyone use these and if so what do you think of them? also it looks to me like the .45 mold is only available in .454 dia, does this sound right? can the bullets be sized down to .452 with a LEE sizer? thanks