The Lee 223 Breech Lock 3-Die Set is an ideal choice for reloaders using the Breech Lock Quick Change feature on their press, especially when reloading mixed range brass. This set includes colored Smart Lock bushings for quick and easy die identification, making the reloading process more efficient. The Full-Length Sizing Die ensures your brass is resized to factory-new dimensions, perfect for brass fired from different firearms. The Easy Adjust Dead Length Bullet Seating Die allows for precise adjustments in seating depth, ensuring consistency with every round. The Factory Crimp Die provides a secure crimp, improving performance and accuracy. The set also includes a Universal Shell Holder, Powder Dipper for consistent powder charges and detailed Instructions/Load Data to guide you through the reloading process. This die set offers precision, convenience and versatility for reloading 223 Remington cartridges.