Reloading dies are special tools that are fixed into the tool head of the press and are specific for each calibre.
There are 6 basic functions of dies: de-priming, sizing, powder charging, expanding, seating and crimping.
The sizing and depriming functions are usually combined in one die, wherethe case is cleared of the old primer and sized to factory dimensions. The sizing is performed either on the entire length of the cartridge case (full length sizing) or just a neck only (collet/neck sizing dies - available only for bottle cases).
The expanding and powdering function is most often combined in pistol calibre dies. The purpose of the expanding function of the die is to create a slight flare on the neck of the brass case to make it easier to seat the bullet. During this operation, the case may also be charged with gunpowder using either attached automatic powder dispenser, or manually through attached powder funnel.
The seating die is used for the accurate seating of the bullet
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. Caliber .338-378 WBY MAG
RCBS 40 SW / 10mm Auto Carbide 3-Die Taper Crimp Set has a Sizer Die with Decapping Unit, Expander Die and a Seater Die for seating and crimping the bullet.
RCBS .44MAG/.44SPEC Carbide 3-Die Taper Crimp Set has a Sizer Die with Decapping Unit, Expander Die and a Seater Die for seating and crimping the bullet.
RCBS .357 Magnum / 38 Special Carbide 3-Die Set has a Sizer Die with Decapping Unit, Expander Die and a Seater Die for seating and crimping the bullet.
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. Caliber .375 RUGER
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. Caliber .35 REM
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. Caliber 9.3X62 MAUSER
RCBS Full-Length Die Set for bottleneck cases. Includes full-length sizing die with expander-decapping unit and seating die with roll crimp. Thread 7/8"-14.
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. Caliber .338 WIN MAG
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. Caliber .338 REM ULTRA MAG
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