Lee Precision Factory Crimp Die – 5.7×28 FN

The Lee Precision Factory Crimp Die for 5.7×28 FN is a caliber-specific crimping die engineered to apply a uniform, controlled crimp without altering bullet seating depth. Designed for the high-velocity 5.7×28 FN cartridge, this die enhances bullet retention, ignition consistency, and feeding reliability—particularly important for magazine-fed firearms.

Lee’s collet-style crimp system applies even, 360-degree pressure around the case mouth, producing repeatable results even when case lengths vary slightly.

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Quick Highlights

• Product Type: Factory Crimp Die (Crimp-Only)
• Caliber Compatibility: 5.7×28 FN
• Crimp Type: Collet-Style Rifle Crimp
• Thread Size: 7/8″-14 (Standard Reloading Press Thread)
• Die Material: Steel
• Press Compatibility: Single-stage and progressive presses

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Performance & Intended Use

The Lee 5.7×28 FN Factory Crimp Die secures the bullet firmly in place to prevent movement during feeding and recoil. A consistent crimp helps maintain a uniform pressure curve, supporting reliable function and consistent performance with lightweight, high-velocity projectiles.

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Ideal For

• 5.7×28 FN ammunition reloading
• Magazine-fed firearms chambered in 5.7×28
• Improving feeding and ignition consistency
• Reloaders using mixed or once-fired brass

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Design & Functional Advantages

• Collet-style crimp applies uniform pressure around the case mouth
• Crimp applied independently of bullet seating
• Less sensitive to minor case length variations
• Enhances shot-to-shot consistency and reliability

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Technical Details

Manufacturer: Lee Precision
Product Type: Factory Crimp Die
Caliber: 5.7×28 FN
Thread Size: 7/8″-14
Crimp Type: Collet-style rifle crimp
Material: Steel

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Compatibility Notes

• Designed specifically for 5.7×28 FN
• Crimp-only die; does not seat bullets
• Intended for use after bullet seating
• Always follow published load data and safe reloading practices

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Lee Precision Factory Crimp Dies are widely trusted by reloaders for their durability, consistency, and performance-enhancing design. The 5.7×28 FN Factory Crimp Die provides secure bullet retention and dependable feeding—helping ensure reliable performance with every loaded round.