Lee 90038 New Lube & Size Kit .309 Diameter Sizer Die|Punch|Case 7|8x14 Threads in.

The Lee 90038 New Lube & Size Kit is a dedicated cast-bullet sizing solution for handloaders working with .309-diameter projectiles. This kit streamlines the process of preparing cast bullets for reloading by combining sizing, lubrication, and gas-check seating in a single operation. Built to work with any single-stage reloading press via its 7/8x14 threaded connection, it's a practical choice for shooters who cast their own bullets and want a faster, more efficient sizing workflow.

The kit's push-through design handles bullets nose-first through the sizing die, eliminating the need for custom nose punches. Gas checks are automatically seated and crimped as the bullet passes through, saving time during ammunition assembly. The included punch mounts in your press ram in place of a standard shell holder, and the included container captures your sized bullets for convenient handling. The .309-diameter die is sized for cast bullets measuring .308" groove diameter—a critical detail for proper bullet fit and case life.

Cast-bullet reloading requires the right tools to maintain consistent sizing and reliable performance. This kit is purpose-built for that job, but remember that a liquid alox lubricant (sold separately) is necessary to prepare bullets before sizing, and you'll need a compatible single-stage press to operate it. For reloaders already invested in cast-bullet production, it's a focused upgrade that cuts down handling time and produces uniform results.

Key Features

• Push-through design sizes bullets nose-first without special nose punches
• Automatically seats and crimps gas checks during sizing
• 7/8x14 threads fit any standard single-stage reloading press
• Included punch replaces shell holder in press ram
• Bullet catch container keeps sized rounds organized
• Sized specifically for .309-diameter cast bullets

Specifications

Frequently Asked Questions

What single-stage presses work with the Lee 90038 lube and size kit?

Any single-stage reloading press with standard 7/8x14 threads will accept this kit. The punch mounts in the press ram in place of the shell holder, so you don't need to swap components between operations.

Do I need to buy bullet lubricant separately?

Yes. The kit does not include liquid alox or other bullet lubricant. You must lubricate your cast bullets before pushing them through the sizing die. Bullets are lubricated, then a gas check is placed on the base, and the assembly is set on the punch to be pushed through.

Can I use this kit with cast bullets of any diameter?

No. This is a .309-diameter sizing kit. It's designed for cast bullets with a .308" groove diameter. Using incorrectly sized bullets can affect accuracy and case life, so match the kit to your bullet specifications.

Does this kit work with gas-check bullets?

Yes. The kit is designed to seat and crimp gas checks as part of the sizing process. Place the gas check on the base of the bullet, set it on the punch, and push through the die—the check will be secured automatically.