Description
If you handload 300 AAC Blackout and care about getting consistent neck tension and long case life, this L.E. Wilson full length bushing sizing die is the kind of tool that earns its spot on the bench. It sizes the case neck to your chosen tension using an interchangeable bushing, works the body and shoulder down to proper dimensions, and deprimes the case all in one stroke. The whole thing runs on standard 7/8"-14 threads, so it drops into just about any common press you already own.
What the Wilson 300 Blackout Die Does on the Press
Because the neck sizing is handled by a swappable bushing instead of an expander ball, you decide how much grip you want on the bullet. Pick a bushing a couple thousandths under your loaded neck diameter and you control tension without dragging an expander back through the neck. That bushing is sold separately, which is standard for this style of die and lets you fine-tune to your brass and bullet combo. It ships with an adjustable depth decapping rod plus an extra decapping punch, and there's no expander in the package by design.
Build Quality You'd Expect From L.E. Wilson
These dies are made in the USA from heat treated steel hardened to Wilson's own spec, running harder than a Grade 8 bolt, with stainless parts that hold up over the long haul. It's the sort of precision tooling that doesn't flinch after thousands of cases.
Getting the Most Out of It
A Wilson case gage is a smart companion here. Using one to set your shoulder bump keeps you from overworking the brass, helps rounds chamber smoothly, and tightens up the fit in your chamber. For 300 Blackout running through a semi-auto, a touch of shoulder bump and reliable neck tension go a long way toward feeding and accuracy, and this die gives you the adjustability to nail both.
Key Specifications
- Manufacturer: L.E. Wilson
- Manufacturer Part Number: FLD-300B
- UPC: 815145025982
- Cartridge: .300 AAC Blackout (7.62x35mm)
- Die Type: Bushing Full Length Sizing Die
- Thread Size: Standard 7/8"-14
- Material: Heat treated steel, harder than a Grade 8 bolt
- Parts: Stainless parts for long life
- Decapping: Adjustable depth decapping rod, extra decapping punch included
- Expander: No expander included (by design)
- Bushing: Interchangeable, sold separately
- Country of Origin: United States
What’s Included
- One L.E. Wilson 300 Blackout bushing full length sizing die
- Adjustable depth decapping rod
- Extra decapping punch
Frequently Asked Questions
Does the 300 Blackout bushing die come with a bushing?
No, the bushing is sold separately so you can match it to your exact brass and bullet combination. Most handloaders measure the neck of a loaded round and choose a bushing a couple thousandths smaller to set their preferred neck tension. This lets you dial in grip rather than being stuck with whatever a fixed die produces.
Will this Wilson full length die work in my regular press?
Yes. It uses standard 7/8"-14 threads, so it fits virtually any common single stage or turret reloading press. There's nothing special required to run it.
Does the die have an expander ball?
It does not. These bushing style dies control neck tension through the bushing itself rather than an expander, which keeps the brass from being worked more than necessary. It ships with an adjustable depth decapping rod and an extra decapping punch, but no expander.
Do I need a case gage with this sizing die?
It isn't required, but a Wilson case gage is strongly recommended for setting up your shoulder bump. Using one helps you avoid overworking the brass, improves chambering, and gives a more precise fit in your rifle. For 300 Blackout fed through a semi-auto, getting that bump right matters for reliable feeding.




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