The Lyman Case Trimmer Pilot #41 (Lyman part no. 7822004) is sized for select .40-caliber rifle and pistol chamberings, guiding the cutter shaft into the case mouth for a square, consistent trim. Reloaders working with any of these chamberings use this pilot to keep the case centered in the trimmer during every pass, preventing the deformation and off-axis cuts that a bare cutter shaft can cause. It is a small, inexpensive part, but the correct pilot number is essential to getting a properly squared case mouth on this cartridge family. Lyman machines each pilot to a tight tolerance so it seats firmly in the cutter shaft without slop.

Key Specifications

• Sized specifically for select .40-caliber rifle and pistol chamberings, matching the correct case-neck diameter for a precise fit.
• Tapered nose guides the pilot into the case mouth so the case is self-centering before the cut begins.
• Keeps the case body supported and aligned to prevent wobble and deformation during trimming.
• Stamped pilot number #41 makes it easy to match the correct part to this cartridge family on a rack of pilots.

Frequently Asked Questions

What cartridges does the #41 pilot fit? It is sized for select .40-caliber rifle and pistol chamberings.

Do I need a different pilot for every cartridge I load? Yes. Case trimmer pilots are matched to case-neck diameter, so each distinct caliber family needs its own correctly sized pilot for a clean, centered trim.

Buy the Lyman Case Trimmer Pilot #41

Round out your case-prep kit with the correct pilot for select .40-caliber rifle and pistol chamberings. Ships fast from our Lubbock, Texas gun shop. Browse the full reloading equipment lineup for more case-prep tools.