Lee Ultimate Rifle 4-Die Set 300 Winchester Magnum

The Lee Precision Ultimate Rifle 4-Die Set for 300 Winchester Magnum (Lee part no. 90738) gives 300 Winchester Magnum handloaders every die the cartridge needs in one box. Lee builds this set around maximum versatility: a full-length resizing die returns fired brass to factory-new dimensions, a Collet Neck Sizing die works fire-formed brass for the best possible accuracy without case lube, an Easy Adjust Dead Length seating die foolproofs bullet seating depth, and a Factory Crimp die secures bullets with or without a cannelure. The set ships complete with a shell holder, powder measure, and Lee load data covering all common brands.

Key Specifications

• Full-length resizing die returns fired brass to factory-new dimensions for reliable chambering in any 300 Winchester Magnum rifle.
• Collet Neck Sizing die resizes only the neck of fire-formed brass for the best possible accuracy, with no case lube required.
• Easy Adjust Dead Length bullet seating die foolproofs the seating adjustment for perfect seating depth every time.
• Factory Crimp die provides a secure crimp on bullets with or without a crimp groove.
• Included shell holder means the set is complete out of the box, no separate purchase needed.
• Included powder measure helps handloaders throw consistent charges from the start.
• Lee load data booklet covers all common powder brands for 300 Winchester Magnum.
• 4-die set configuration covers the full sizing, seating, and crimping workflow for 300 Winchester Magnum.
• Extended case life results from the low-stress collet neck sizing process, letting brass be reloaded many more times.
• Complete boxed set needs no separate die or accessory purchase to start loading 300 Winchester Magnum from fired brass to finished round.

Frequently Asked Questions

What is included in this die set? A full-length resizing die, a Collet Neck Sizing die, an Easy Adjust Dead Length seating die, a Factory Crimp die, plus a shell holder, powder measure, and Lee load data.

Do I need case lube with this set? Not for the Collet Neck Sizing die, which resizes fire-formed brass without lube; the full-length sizing die is used for brass fired in other rifles and follows standard sizing practice.

What cartridge is this die set built for? This set is built specifically for 300 Winchester Magnum.

Buy the Lee Ultimate Rifle 4-Die Set 300 Winchester Magnum

Stock the bench for 300 Winchester Magnum handloading. Order the reloading dies from our Lubbock, Texas gun shop and it will ship out as soon as it’s ready to go.