The RCBS Flash Hole Case Pilot Stop in .40/10mm (RCBS part no. 88136) is the caliber-specific adapter that lets the RCBS Flash Hole Deburring Tool center and stop correctly inside .40/10mm cases. On its own the deburring tool removes the excess brass burr left around the flash hole from case manufacturing, which reduces case-to-case variation and helps ignition run more consistently, but it needs the right pilot stop to do that job on a given caliber. This pilot stop is that piece for .40/10mm brass.

Key Specifications

• Sized specifically for .40/10mm cases.
• Adapts the RCBS Flash Hole Deburring Tool to this caliber.
• Centers the tool to remove the flash hole burr for more consistent ignition.

Frequently Asked Questions

Does this include the deburring tool itself? No, this is the caliber-specific pilot stop only; the RCBS Flash Hole Deburring Tool body is sold separately.

Why debur the flash hole at all? Removing the manufacturing burr around the flash hole reduces case-to-case variation, which helps primer ignition run more consistently.

Buy the RCBS Flash Hole Case Pilot Stop, .40/10mm

Pick up the .40/10mm pilot stop from RCBS to round out your case-prep kit. Order it from our Lubbock, Texas gun shop for fast, insured direct shipping.