Just a note. The only way to find Clays powder is an old stash in someone's loading room. All three of the Clay's powders have ben out of production for several years now. However, a NOS jug does appear every now and again.You should not need a crimp die for a non-tube fed, bolt action. If used, The Lee Factory Crimp should be set to just barely push the brass flat against the bullet. Plated bullets are delicate, and will loose accuracy if the crimp damages the plating.
My best 150 grain sub-sonic load in a Ruger American was 5grains of Clays powder.

