Whoa....bunch of replies. Thanks all.
Forgot to mention that I will be starting out with 9mm. .38 sp. later. I haven't shot any 147grain bullets in my 9mm, yet, so I've not settled on what I want for range use with these future castings.
I don't have a proper temp controlled casting furnace. When I used cast RB's and conicals I just smelted outside with a small pot over a gas burner. Had no idea that lead temp at casting time with affect final size. Will investigate that Lee sizer. Especially if it is inexpensive.