Description
The Lee Undersized Carbide Sizing Die is a full-length carbide pistol sizing die made .003 in smaller than Lee’s standard carbide die. Brass fired in generous or unsupported chambers often keeps a bulge near the web that a normal die leaves behind, and that bulge is what causes feeding and chambering problems in tight-chambered competition pistols. Running cases through the undersize die restores them to a diameter that chambers freely. We stock the 9mm Luger die (Lee part 90313) and the 38 Super die (part 90333); both are the sizing die only, with a standard 7/8-14 thread for common single-stage, turret and progressive presses.
Key features
- Carbide sizing ring – no case lube needed for straight-wall pistol brass
- .003 in under Lee’s standard carbide sizing diameter
- Removes the bulge left by unsupported chambers
- 9mm Luger = Lee 90313; 38 Super = Lee 90333
- Standard 7/8-14 die thread
- Sizing/decapping die only – pair with your existing expander and seating dies
Frequently asked questions
Will it over-work my brass?
It sizes only .003 in tighter than standard; Lee sells it for exactly this use. Normal case life applies, though heavily bulged cases should be inspected.
Is it a full die set?
No. You receive the undersize sizing die only; keep using your current expander, seater and crimp dies.
Does it need a licence?
No. Reloading dies are not firearms or ammunition; this item ships Australia-wide.
Shooting accessory – not a firearm or ammunition; no licence is required to purchase and it ships Australia-wide. Specifications from the manufacturer. 3 Gun Tactical, Licensed Firearms Dealer 50001578, Tingalpa QLD.





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