Redding Series A Full Length Die Set for Bottleneck Cases .375 H&H Mag

The Redding Series A Full Length Die Set for Bottleneck Cases .375 H&H Mag is a precision reloading toolset engineered for shooters who demand repeatable, high-tolerance ammunition production. This two-die set combines a full-length resizing die with a seating die, delivering the dimensional consistency required for magnum rifle cartridges in the .375 H&H class. Redding's manufacturing process—utilizing Hardinge Super-Precision lathes—ensures tolerances tight enough to support hunting and long-range shooting applications where case uniformity directly impacts point-of-impact stability and velocity consistency.

The full-length resizing die incorporates a decapping rod assembly with integrated neck expander (size button), allowing controlled shoulder and body resizing in a single stroke while removing spent primers. The seating die features a built-in bullet guide and crimp ring, with a caliber-specific seating plug that positions the projectile to correct depth. These components work together to eliminate case runout and ensure consistent cartridge length—critical variables for magnum cases where slight variations compound across shot strings. Redding's alloy steel construction resists wear and maintains dimensional accuracy across hundreds of reloading cycles.

This die set serves hunters, long-range precision rifle competitors, and handloaders working with the .375 H&H Magnum—a cartridge used for medium to large game hunting where reload quality directly affects field performance. The .375 H&H's popularity in magnum rifle platforms makes a dedicated, precision die set a foundational component of a serious reloading bench. Whether working up loads for controlled expansion hunting ammunition or optimizing for velocity and accuracy, the Redding Series A delivers the process repeatability that separates quality handloads from mediocre ones.