I have a custom LEE mould for a solid base .592 bullet. It was designed by an experienced Snider marksman, and gunmaker, Kerry Jenkinson in Grand Forks BC, Canada. I have a few made up, if you are interested. I will post the measurements and description later today. Here it is!
DESCRIPTION;
Weight (wheel weight metal) about 515 grains (Off my scale a bit!)
Diameter (W-W) .594
Length .800
Form; Round nose with two grease grooves of moderate size, the front edge of the top groove is .411 from the base. bevel base.