SKU: RC38862
UPC: 076683388629
MPN: 38862
The RCBS X Die Small Base Die Set for .223 Rem is purpose-built for serious handloaders who demand precision and consistency in ammunition production. This die set is ideal for reloading match-grade rifle rounds for competition shooting, precision hunting, or building tight ammunition batches for accuracy testing. It delivers the control needed to produce sub-MOA capable cartridges.
Small base dies are engineered to resize .223 Remington brass more aggressively than standard dies, ensuring reliable feeding and chambering in AR-15 platforms and bolt-action rifles with tighter tolerance chambers. This X Die set includes a small base sizing die that reduces case diameter with precision and a bullet seating die that allows micro-adjustments for optimal bullet seating depth. The small base configuration resizes the case body below standard SAAMI specifications, which is critical when working with semi-automatic platforms.
Handloaders working with AR-15 rifles, M16 variants, or precision bolt guns will benefit most from this die set's aggressive case control. The design is particularly useful for processing once-fired military brass, ensuring that reloads fit snugly in chambers with tighter tolerances. RCBS manufacturing tolerances ensure each die is concentric and hardened to handle the pressures of repeated production runs without performance degradation.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.