I am looking for a Accurate mould that will work well with my S&W 24-3. Throats measure .433 and bore measures .430. With a 4" bbl a 240 gr bullet works well . I have several .44cal 245-250 gr moulds. but would like to go with a 4 cav. aluminum. Alloy will be clip on ww and range lead. Prefer a RNFP. design. Any replys thanks.