Lyman - Case Trimmer Pilot 31 Hornady The hollow point provides a

The hollow point provides a small meplat for reduced drag and increased aerodynamic efficiency while the pronounced boat-tail design provides efficient flight characteristics over a wide range of velocities

The Lock‑N‑Load Bullet Comparator Inserts allow the reloader to measure the bullet from the base to a specific point on the ogive

or maybe you just want a second one because one is included when you buy the machine

It has a big elevation range

Lyman - Case Trimmer Pilot 31 Hornady The hollow point provides aLyman Case Trimmer Pilots are required when trimming cases with the Lyman case trimmer. The appropriate sized pilot lines the case head square to the cutter.