What I have learned over the last 50 years is ...
Whatever sizer you buy ... you usually need the next larger or smaller size .
The Lyman Cast Bullet Manual sized their 44 special and magnum boolits to .429" and is a good place to start ... but so many variables in barrels , bores and tolerances ...you just never know exactly what size a revolver will want/need .
44 magnum ... buy three dies .429" .430" and .431" this should cover any handgun and rifle needs but ...
Chances aregood that .432" gun is lurking just waiting for you to buy it !
I have gotten by with:
.357" & .358" for 38 spcl / 357 magnum & 9mm Luger
.451" & .452" for 45 acp
.429" & .430" for 44 Special Revolver ...
.431" is for a Rifle , Rossi lever action .
What I'm trying to say is ... One size is never enough ... if you are ordering sizer die just go ahead and order two or three becuase at some point in time you will be sure to need it .
NOE sells a bullet sizer that has interchangable bushings and they come in a plethora of sizes
Check out their sizing kit at the shop
www.noebulletmoulds.com it's a neat set up .
Gary