Lee .284 Bullet Sizer and Punch
The Lee .284 Bullet Sizer and Punch sizes cast bullets to a precise .284 inch diameter, matching the standard used in 7mm cartridges. It also seats and crimps gas checks, making it a versatile tool for reloaders.
Running cast bullets through the sizer ensures uniform diameter before loading, improving consistency and accuracy. This tool is designed specifically for 7mm rifle bullet sizing and is ideal for those who cast their own bullets.
Specifications
| Feature | Detail |
|---|---|
| Diameter Size | .284 inch |
| Function | Size cast bullets, seat and crimp gas checks |
| Intended Use | 7mm rifle bullet preparation |
| Compatibility | Matches with appropriate bullet molds and barrels |
FAQ
Can this tool be used with other bullet diameters?
No, this tool is specifically designed for .284 inch bullets and is intended for use with 7mm cartridges. It is not compatible with other bullet sizes.
Does the tool require any maintenance or cleaning?
Yes, after each use, the tool should be cleaned with a soft cloth and mild solvent to remove any residue. Ensure the internal surfaces are dry before storing.
Can I use this tool to size bullets for other cartridges?
Please contact customer service

Edward Ince –
This tool works perfectly for sizing my 7mm cast bullets. The .284 diameter is spot on and the gas check seating is reliable. I no longer have to use two separate tools for sizing and crimping.
Alexander Parr –
Good precision and easy to use. I’ve been reloading for years and this tool gives consistent results. The only thing I wish was a larger capacity for faster processing.
Julian May –
Exactly what I needed for my 7mm rifle reloading. The uniform sizing improves accuracy, and the gas check crimping is solid. No issues so far with durability or performance.