The Lee Precision 90702 Collet 2-Die Set delivers precision neck sizing and bullet seating for 220 Swift cartridges. This collet-style die system maintains brass case life while producing consistently accurate ammunition for high-velocity varmint hunting and long-range shooting applications.
What Makes This Different
Unlike traditional full-length sizing dies, the collet die only sizes the case neck while leaving the body untouched, significantly extending brass life. The mandrel-based design centers bullets perfectly during seating, eliminating runout common with standard dies. This approach reduces case working and maintains chamber-fit dimensions for improved accuracy and brass longevity.
Key Features
- Collet neck sizing die preserves brass case body dimensions
- Dead length bullet seating die with built-in crimp adjustment
- Hardened steel construction with precision-machined threads
- Includes sizing mandrel and collet assembly
- Standard 7/8-14 threads fit most reloading presses
- Factory crimp die creates consistent bullet pull
- Complete instructions and load data included
The collet system produces ammunition with minimal case neck tension variation, critical for the 220 Swift's high-velocity performance. Benchrest shooters and varmint hunters benefit from the consistent neck tension that improves accuracy potential. The sizing process requires less force than conventional dies, reducing press wear and operator fatigue during extended reloading sessions. Cases sized with this die set typically last 8-10 firings compared to 3-5 with standard full-length dies.
Technical Specs
- Caliber: 220 Swift
- Thread: 7/8-14 TPI standard
- Die type: Collet neck sizing and bullet seating
- Material: Hardened tool steel
- Finish: Black oxide coating
- Includes: Two dies, mandrel, collet, instructions
- Compatible with: Most single-stage and turret presses
- Country of origin: United States
This die set addresses the specific needs of 220 Swift reloaders who demand maximum brass life and precision ammunition. The collet design eliminates the guesswork in case preparation while maintaining the tight tolerances required for this high-performance cartridge.