That video explains much about Lee moulds.
Just the same, I have a box-stock Lee C-309-200 that does fine work in my 30-06 (Husq Mauser 98 commersh). The Tale Of The Tape on the Husqy is EXQUISITE--4 groove .300" x .308" barrel, throat at .3085" and a pretty close-in leade with gentle rise. It loves .308" J-words and castings at .309". Both cavities in the Lee mould weigh the same and measure the same as best I can tell, the castings clean up completely in a .309" H&I sizer after starting life at about .3105" as-cast. Nose is a couple tenths over .300", and seated bullets have a nice draggy slip-fit upon chambering, and don't pull bullets when extracted. Cast of 92/6/2--checked with Hornady 30s--and lubed with C-Red, they shoot very well--1.5 MOA at 100 yards atop 16.0 grains of 2400/WLR primers and almost as good (1.6 to 1.7 MOA) atop 60.0 grains (100%-density) of WC-860/Fed 215 primers for 1975-2000 FPS, satisfying boomy report, and 12 gauge trap-load recoil. Both are fun loads. The bullet's shoulder kisses the rifling leade. (FWIW, 165 grain Game Kings and Ballistic Tips both run about 0.7-0.8 MOA @ 2700 FPS from this one. It's a keeper. This is the first of about six 30-06s I have owned that didn't need .311" bullets to shoot castings well).
I suspect that Lucille was on vacation or RDOs on the day my mould was birthed.
This rifle came with a steel Lyman receiver sight, and now that I know it can shoot well via the 3x-9x Leup atop it now I might remove the scope and use this as an "iron-sight rifle" for NCBS or recreational paper- and critter-perforating. Of course, this will mean another bolt 30-06 for the Leup 3x-9x to perch upon. How dreadful.