Product Overview

The RCBS Precision Mic 6mm Creedmoor (Model R88334) is a highly specialized, purely mechanical measuring instrument designed for precision handloaders. This analog tool allows reloaders to measure cartridge headspace and bullet seating depth with extreme accuracy, enabling them to tailor their ammunition to the exact dimensions of their rifle's chamber. By providing precise physical measurements, this tool helps shooters optimize accuracy, manage bullet jump, and extend the usable life of their cartridge brass. Built with a threaded steel body and two specialized precision caps, it operates entirely without batteries, cables, or external electrical power.

Key Features

• Headspace Measurement: Measures the distance from the datum point on the cartridge case shoulder to the base, providing exact SAAMI tolerance readings to help determine the precise amount of resizing needed.
• Seating Depth Calibration: Measures the exact distance to the rifle's lands (where the rifling starts) so handloaders can adjust bullet seating depth to manage bullet jump and maximize consistency.
• Dual-Scale Laser Etching: Features a durable steel body marked in 0.050-inch increments, combined with precision caps marked in highly detailed 0.001-inch increments for clear, micrometer-style readings.
• Mechanical Reliability: Requires no electrical power, making it fully immune to battery failures and ideal for stable, long-term use in dedicated Australian reloading environments.

Product Specifications

• Model Number: R88334
• Caliber Compatibility: 6mm Creedmoor exclusively
• Power Requirement: None (purely mechanical)
• Body Markings: 0.050-inch increments
• Precision Cap Markings: 0.001-inch increments
• Accuracy Threshold: ±0.001 inches
• Material: Steel

Who is the RCBS Precision Mic 6mm Creedmoor for?

• Precision handloaders loading 6mm Creedmoor ammunition — require this caliber-specific reloading headspace and seating micrometer to measure from the datum point of the case shoulder to the base within an accuracy threshold of ±0.001 inches, ensuring precise case sizing and avoiding over-working the brass.
• Competitive long-range shooters tuning seating depth and cartridge headspace — benefit from the laser-etched 0.050-inch body increments and 0.001-inch precision cap increments on this reloading headspace and seating micrometer to accurately measure the distance to their rifle's lands, allowing them to perfectly manage bullet jump for maximum consistency.

Less suitable for: reloaders working with calibers other than 6mm Creedmoor, as this product is strictly caliber-specific and cannot be modified or adjusted to measure other cartridges; these users require a different caliber-specific reloading headspace and seating micrometer model designed specifically for their target cartridge.