Description
If you've ever felt that rough drag when the expander ball pulls back through a case neck, the Lyman Case Neck Dipper is the little tool that smooths it out. It handles two jobs in one tidy setup: it cleans the inside of the case mouth, then coats it with a dry mica lubricant so sizing goes easier on both your brass and your dies. That reduced friction means less neck stretching and less material loss, which adds up to brass that lasts longer and necks that size more consistently.
How the Case Neck Dipper Earns Its Spot on the Bench
The process is about as simple as it gets. Run one of the included brushes inside the case mouth to knock out carbon and grit, then dip that mouth into the mica reservoir and you're ready to size. Because it's a dry powder rather than a wet lube, there's no sticky residue to wipe off and nothing to contaminate your powder or primers. The mica goes exactly where you want it, right on the neck, and stays out of the body.
What Comes in the Lyman Neck Dipper Set
The kit arrives in a sturdy plastic case with brush holders and a reservoir for the Motor Mica dry lubricant. You get three brushes sized to cover a wide spread of calibers: one for .22 to .27, one for .35 to .40, and one for .44/.45. Between those brushes and the included mica, the dipper works with bottleneck cases from roughly .17 up to .45 caliber, so most reloading benches are covered right out of the box.
Why Reloaders Keep a Dipper on the Bench
For anyone chasing accurate, consistent handloads, even neck tension matters, and clean, properly lubed necks are a big part of getting there. Lyman has been building reloading gear for a long time, and this is one of those quietly useful tools that solves a real problem without a lot of fuss. When the mica runs low, refills are sold separately so you can keep the same case going for years.
Key Specifications
- Manufacturer: Lyman
- Manufacturer Part Number: 7631360
- UPC: 011516713605
- Type: Case Neck Dry Lube Kit
- Lubricant: Motor Mica dry lubricant (approx. 3.1 grams)
- Brushes Included: 3 (.22-.27, .35-.40, .44/.45)
- Caliber Range: .17 to .45
- Color: Orange
- Length: 4.45 in
- Shipping Weight: 0.175 lb
- Country of Origin: USA
What’s Included
- Plastic case with brush holders and lubricant reservoir
- Motor Mica dry lubricant (approx. 3.1 grams)
- 3 brushes (.22-.27, .35-.40, and .44/.45 caliber)
Frequently Asked Questions
What does the Lyman Case Neck Dipper do?
It cleans the inside of your bottleneck case mouths and then coats them with a dry mica lubricant. That lube cuts the drag from your sizing die's expander ball, which helps prevent case neck stretching and material loss. The result is smoother sizing and longer life for both your brass and your dies.
What calibers does the Case Neck Dipper cover?
The three included brushes cover bottleneck cases from about .17 up to .45 caliber. One brush fits .22 to .27, another fits .35 to .40, and the third fits .44/.45. That range handles most common rifle and bottleneck pistol brass found on a typical bench.
Is the mica a wet or dry lubricant?
It's a dry powder lube called Motor Mica, not a wet or oily case lube. Because it's dry, it doesn't leave sticky residue and won't contaminate powder or primers. You just dip the clean case mouth into the reservoir and you're ready to size.
Can you buy more mica when it runs out?
Yes. Lyman sells a Motor Mica refill separately so you can top off the reservoir once the included supply runs low. That lets you keep using the same dipper case and brushes for a long time.





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