Sizing a bullet to a certain diameter may be a useless step and harmful to accuracy. It depends on what the diameter the rifle's chamber throat. LUBING is important with a "lubrisizer". SIZING a cast bullet down to a smaller diameter with a lubrisizer may very well be a mistake,
If the "as cast" diameter of the bullet is close to throat diameter, just lube it and try shoot it. The "as cast" bullet may be the right diameter. If you don't have a lubrisizer sizing die equal or larger than your "as cast" bullet, just pan lube the bullet. use a fired case to "cookie cutter" the bullet from the hardened lube. Vio!a! A lubed, as-cast bullet. ( but no gas check).
