Why not run 429421 44 caliber cat bullets thru the Lee 430 sizer and then use Lee liquid Alox lube mixed 50 % mineral spirsts.
I have written to Lee precisons and they assure me that it is the bearing surfaces that need to be LEE lubed not the grooves. That being the case seems to me that running any normal bullet like a lyman 429421 thru the Lee sizer with a little mineral sprirts for lube should be a fast way to size. Rather than do the Lee swril and lube in a tub, I am going to try wearing rubber gloves, dip my fingers in Lee liguid lube with 50% mineral sprites, pick up the bullest wiggle a tad and set up right on wax paper.
Would be worth a try before I sell my lyman 450 szier and dies.
I have a Lee 356 two cavity mould with one grease groove. The same method should work and provide more bearing surface with lube than the Lee Tumble lube of the same size.