Premium Series Deluxe 3-Die Set Features The Premium Deluxe three (3) die set; contains the Premium two (2) die set RB66261 (a carbide Size Button in the full length sizing die and the Bullet Seating Micrometer on the seating die) with the addition of a standard neck sizing die. Premium Series Deluxe 3-Die Set Specifications carbide Size Button in the full length sizing die Bullet Seating Micrometer on the seating die Standard neck sizing die