For handloaders chambering .348 Winchester, the RCBS .348 Winchester Full-Length 2-Die Set (RCBS part no. 33601) is a full-length two-die set from RCBS that covers sizing and bullet seating in a single purchase. It is designed to bring fired .348 Winchester brass back to factory-correct dimensions before seating a new bullet, so every finished round chambers and feeds the way it should. It is a dependable choice whether you are loading for a hunting rifle, a precision build, or simply keeping a steady supply of .348 Winchester on hand.

Key Specifications

• Machined specifically for the .348 Winchester cartridge, so every die in the set is cut to that cartridge’s own dimensions rather than a universal fit.
• The Full-Length Sizer Die combines an integrated expander-decapping unit, so it resizes the case, knocks out the spent primer, and expands the neck to accept a new bullet in a single pass.
• Sizing brings fired brass back to SAAMI minimum cartridge dimensions, restoring reliable chambering even in a tight factory chamber.
• Vent ports in the sizer die body release trapped air and excess case lube, a detail that keeps cases from denting or sticking mid-stroke.
• Headspace is held to minimum tolerances during sizing, so the case body is not over-worked or stretched with every reloading cycle.
• The Seater Die includes a bullet seater plug with a built-in roll crimper, seating the bullet and applying the crimp in the same stroke.

Frequently Asked Questions

What does this die set include? A Full-Length Sizer Die and a Seater Die, covering the core sizing and bullet-seating steps for .348 Winchester.

What cartridge is this set made for? The .348 Winchester, with every die cut to that cartridge’s own SAAMI dimensions rather than a generic bore size.

Is a separate crimping die needed? No. The seater die has a built-in roll crimper, so seating and crimping happen in the same step.

Buy the RCBS .348 Winchester Full-Length 2-Die Set

Add this .348 Winchester die set to your bench and start turning fired brass into finished ammunition again. Order it from our Lubbock, Texas gun shop, where the full reloading dies lineup ships fast with careful, insured packaging.