Our lube and size kit will not work with the R.E.A.L. Muzzleloading bullets.
The driving rings on the R.E.A.L. bullet are not all the same diameter. They are smaller at the base of the bullet and increase in diameter as you approach the nose of the bullet. It is designed this way to accomplish three things. The first is to center the bullet in the bore which is important for accuracy. Second is to clean the bore of fowling from the previous shot. And third is to provide easier loading. When cast from pure lead the bullet will be able to be seated with relative ease.
The sizing die is really nothing more than a steel tube of a set diameter. It is designed to uniformly size the bearing surfaces of the bullet to the same diameter top to bottom. If you run a R.E.A.L. bullet through a sizing die it will cease to be a R.E.A.L. bullet and I could not vouch for its accuracy. You would be just as well of using a straight wall bullet of another design.