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Specifications

brand: lee
device: dies

Description

Lee Collet Die Set 300 AAC 90772

Lee 300 AAC Blackout collet die set includes a collet die that uses a collet to squeeze a mandrel creating a precisely aligned case neck while reducing run out, dead length bullet seater die, shell holder, powder Dipper, and instructions/load data.

Specifications:

➼ Brand: Lee Precisions
➼ MPN: 90772
➼ Caliber: 300 AAC Blackout
➼ Country of Manufacture: United States
➼ Type: Reloading Dies
 

Best Suited For

  • Precision shooters using bolt-action or single-shot .300 AAC Blackout rifles
  • Reloaders seeking maximum case life and minimal brass working
  • Users prioritizing accuracy and consistent neck tension
  • Shooters who reload for one specific rifle
  • Subsonic and supersonic load development requiring tight consistency

When To Use It

  • When reloading previously fired brass from the same rifle
  • During precision load development
  • When you want to reduce case trimming and extend brass life
  • When chasing tight groupings and repeatable performance

⚠️ Not ideal when:

  • Brass must be used across multiple rifles
  • You need guaranteed chambering in semi-auto platforms (e.g., AR-15)

Technical Information

  • Model: 90772
  • Caliber: .300 AAC Blackout
  • Die Type: Collet neck sizing die set
  • Thread: Standard 7/8"-14 press compatibility
  • Material: Hardened steel

FAQs

1. Does this set full-length resize cases?

❌ No. It only resizes the neck. For full-length resizing, a separate die is required.

2. Is it suitable for AR-15 rifles?

⚠️ Not recommended. Semi-auto rifles typically require full-length sizing for reliable feeding.

3. Do I need case lubrication?

✔️ No (for the collet die) — one of its biggest advantages.

4. Will it improve accuracy?

✔️ Often yes—because the case remains fire-formed to your chamber, improving alignment and consistency.

5. Can I use mixed brass?

⚠️ Not ideal. Best results come from brass fired in the same rifle.

Delivery and Compliance

  • Classified as reloading equipment (non-controlled component)
  • Generally legal to ship internationally, including New Zealand
  • Possible restrictions due to:
    • Export regulations (e.g., U.S. export controls)
    • Retailer shipping policies
  • Always confirm local laws and import rules before ordering

Questions?

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