Full length sizing dies and die sets for the 300 PRC
The 300 PRC was designed from the ground up as a long-range precision cartridge, and die selection should reflect that intent. A full length sizing die set is the foundation of any 300 PRC reloading setup - it returns fired cases to consistent dimensions and ensures reliable feeding in both bolt-action and magazine-fed platforms. Redding offers their competition die sets with micrometer adjustments that let you dial in shoulder bump and seating depth to thousandths of an inch. Wilson hand dies deliver outstanding concentricity for shooters who prioritise case alignment above all else. For most reloaders, a quality full length die paired with a micrometer seating die covers everything the 300 PRC requires. Adding a dedicated sizing die with interchangeable bushings gives you finer control over neck tension as you develop loads - particularly useful when switching between brass manufacturers or bullet weights.
Case management and die setup for a magnum cartridge
The 300 PRC generates significant case stretch on each firing, which means die setup and case management are inseparable from accuracy. Shoulder bump should be minimal - just enough to chamber reliably. Overworking fired cases shortens their useful life and introduces the kind of dimensional variation that shows up at 1,000 yards. Full length sizing is essential for this cartridge, but how aggressively you size matters. Monitor case length after every firing cycle and trim to specification before the next reload. Primer pocket tightness is your first warning sign of case fatigue - if pockets start loosening, those cases are done regardless of how they look externally. The 300 PRC rewards patience and consistency in every step of the reloading process, and that starts with understanding exactly what your die is doing to each case. For guidance on extending case life through proper maintenance, our resources on annealing basics cover the full process.
Creedmoor Sports and precision reloading
Creedmoor Sports was founded by competitive shooters, and that background shapes everything we stock. We carry 300 PRC dies from Redding and Wilson because both manufacturers build dies to the tolerances this cartridge demands. Whether you're building long-range hunting ammunition or developing competition loads for the 300 PRC, we can help you find the right die set and reloading components for your setup.