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L.E. Wilson
The L.E. Wilson Bushing Type Full Length Sizing Die for 300 Win Mag gives handloaders precision control over neck tension while sizing the case body in a single pass. Unlike standard full-length dies, this Wilson design leaves the bottom 3/16" of the case neck unsized—a technique many precision shooters swear by for tighter groups and longer case life. If you're chasing accuracy in magnum rifle reloading and want the flexibility to dial in your own neck fit, this die delivers the adjustability serious reloaders demand.
Built from hardened steel to L.E. Wilson's exacting specs—harder than Grade 8 bolts—this die is engineered for longevity and consistency. It accepts interchangeable bushings (sold separately), so you can fine-tune neck sizing to match your specific brass and bullet combination. The included adjustable depth decapping rod and extra decapping punch get you started, though you'll need to source a compatible neck bushing. Stainless steel components resist corrosion in the reloading bench environment, and the included Wilson lock nut (designed to exact Wilson tolerances) ensures your die stays put on your press.
This is a full-length sizing solution built for handloaders who understand that case prep isn't just about fitting brass into the chamber—it's about controlling variables. The bushing system means you're not stuck with one fixed neck diameter; you can match your reloading to your rifle's chamber and your ammunition's intended use. Fits standard 7/8"-14 reloading press threads.
| Cartridge | 300 Win Mag |
| Die Type | Bushing Type Full Length Sizing Die |
| Press Compatibility | Standard 7/8"-14 thread |
| Unsized Neck Length | 3/16" (bottom of case neck) |
| Material | Heat-Treated Steel |
| Included Components | Adjustable depth decapping rod, extra decapping punch, Wilson lock nut |
| Lock Nut Dimensions | 0.225" inner-to-outer height, 0.270" total height, 1.250" OD width |
| Expander | Not included |
L.E. Wilson neck bushings are the primary match for this die. Redding bushings will also fit, giving you options when dialing in your load. Bushings are sold separately, so you'll need to select the diameter that suits your brass and chamber.
Many precision shooters find that partial neck sizing—leaving the bottom unsized—improves accuracy and reduces case work hardening at the neck shoulder junction. It also extends case life by minimizing stress cycling. This die is designed around that philosophy.
This die threads into any standard reloading press with 7/8"-14 threads. That covers virtually all single-stage and progressive presses on the market. Verify your press uses standard threads if you're unsure.
You'll need to purchase a neck bushing separately—choose the diameter to match your chamber and desired neck tension. The die comes with an adjustable decapping rod and spare punch, so you're ready to size and deprime 300 Win Mag brass once the bushing is installed.
L.E. Wilson
The L.E. Wilson Bushing Type Full Length Sizing Die for 300 Win Mag gives handloaders precision control over neck tension while sizing the case body in a single pass. Unlike standard full-length dies, this Wilson design leaves the bottom 3/16" of the case neck unsized—a technique many precision shooters swear by for tighter groups and longer case life. If you're chasing accuracy in magnum rifle reloading and want the flexibility to dial in your own neck fit, this die delivers the adjustability serious reloaders demand.
Built from hardened steel to L.E. Wilson's exacting specs—harder than Grade 8 bolts—this die is engineered for longevity and consistency. It accepts interchangeable bushings (sold separately), so you can fine-tune neck sizing to match your specific brass and bullet combination. The included adjustable depth decapping rod and extra decapping punch get you started, though you'll need to source a compatible neck bushing. Stainless steel components resist corrosion in the reloading bench environment, and the included Wilson lock nut (designed to exact Wilson tolerances) ensures your die stays put on your press.
This is a full-length sizing solution built for handloaders who understand that case prep isn't just about fitting brass into the chamber—it's about controlling variables. The bushing system means you're not stuck with one fixed neck diameter; you can match your reloading to your rifle's chamber and your ammunition's intended use. Fits standard 7/8"-14 reloading press threads.
| Cartridge | 300 Win Mag |
| Die Type | Bushing Type Full Length Sizing Die |
| Press Compatibility | Standard 7/8"-14 thread |
| Unsized Neck Length | 3/16" (bottom of case neck) |
| Material | Heat-Treated Steel |
| Included Components | Adjustable depth decapping rod, extra decapping punch, Wilson lock nut |
| Lock Nut Dimensions | 0.225" inner-to-outer height, 0.270" total height, 1.250" OD width |
| Expander | Not included |
L.E. Wilson neck bushings are the primary match for this die. Redding bushings will also fit, giving you options when dialing in your load. Bushings are sold separately, so you'll need to select the diameter that suits your brass and chamber.
Many precision shooters find that partial neck sizing—leaving the bottom unsized—improves accuracy and reduces case work hardening at the neck shoulder junction. It also extends case life by minimizing stress cycling. This die is designed around that philosophy.
This die threads into any standard reloading press with 7/8"-14 threads. That covers virtually all single-stage and progressive presses on the market. Verify your press uses standard threads if you're unsure.
You'll need to purchase a neck bushing separately—choose the diameter to match your chamber and desired neck tension. The die comes with an adjustable decapping rod and spare punch, so you're ready to size and deprime 300 Win Mag brass once the bushing is installed.
