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. This two-die set is intended for reloading bottleneck cases, and consists of a Full-Length Sizer Die with an Expander-Decapping Unit, and a Seater Die with Bullet Seater Plug. The Full-Length Sizer Die brings the case to SAAMI minimum cartridge dimensions. It sizes the outside of the case, de-primes and expands the neck to accept the bullet. The die has vents to prevent case damage caused by trapped air and for excessive lubricant. Headspace is held to minimum tolerances to avoid changing the case body length during full length sizing. The included Seater Die has a built-in roll crimper to secure the bullet at the same time as it's seated. Standard 7/8"-14 Thread Proprietary Die Steel Set includes Full-Length Sizing die and Bullet Seating Die Sizing die brings cases to SAAMI minimum cartridge dimensions Ships in Green Die Box Made in USA