This is a limited SKU offering of RCBS's time-tested full length sizing die sets in calibers that have been part of America's military service rifle and service pistol history over the last 250 years. Die sets will all ship in a commemorative wooden box, with special 250th anniversary logos. Dies will be packaged in the conventional plastic die box inside the wooden box so that you can utilize the plastic box for storage and have the wooden box for additional storage of bullets, reloading tools, or anything you see fit. RCBS pioneered and developed 3-Die Sets for straight-wall rifle and pistol cases. The Carbide Sizer Die sizes the case and de-primes (the carbide sizer ring eliminates the need to lubricate). The Expander Die expands the case to the proper diameter to accept the bullet, and it imparts case mouth flare/bell for bullet feeding. The Seater Die seats the bullet and taper crimps.