The Hornady Custom Grade Series I .300 Winchester Magnum 2-Die Set (brand part no. 546352) includes a full-length sizing die and bullet seater die for this hard-hitting magnum. Hornady built this set for big-game hunters and long-range shooters reloading .300 Win Mag brass for magnum-level performance.

Key Specifications

• Sized specifically for the .300 Winchester Magnum cartridge to SAAMI-spec dimensions for a consistent, repeatable fit.
• Includes a full-length sizing die and a bullet seater die in one box, everything needed to resize fired brass and seat bullets.
• The seater die’s Sip Spindle design uses light threads on the spindle and collet, eliminating slippage so bullet-seating depth stays precise.
• Backed by a lifetime durability guarantee against breakage or wear under normal reloading use.
• Full-length (not neck-only) sizing brings brass back to spec for reliable feeding in both bolt-action and semi-auto rifles.
• Part of Hornady’s Custom-Grade die lineup built around the most popular bottleneck rifle cartridges.

Frequently Asked Questions

What does this die set include for .300 Winchester Magnum? A full-length sizing die and a bullet seater die sized for .300 Winchester Magnum, everything needed to resize fired brass and seat new bullets.

Will these dies wear out with regular use? No. Hornady backs its Custom-Grade dies with a lifetime durability guarantee against breakage or wear under normal reloading use.

Does the sizing die work for semi-auto rifles? Yes. It is a full-length sizer, not a neck-only die, so resized brass cycles reliably in both bolt-action and semi-auto actions.

Buy the Hornady Custom Grade Series I .300 Winchester Magnum 2-Die Set

Order the Hornady Custom Grade Series I .300 Winchester Magnum 2-Die Set from our Lubbock, Texas gun shop for your reloading dies bench.