Redding Instant Indicator Headspace and Bullet Comparator With Dial Indicator 300 PRC

The Redding Instant Indicator Headspace and Bullet Comparator with Dial Indicator for 300 PRC is a precision measurement tool built for reloaders who demand accuracy without the extra setup steps. This version ships complete with a dial indicator already installed, so you can start measuring headspace and seating depth right out of the box—no hunting for a compatible indicator or waiting for additional gear to arrive. If you're building match-grade 300 PRC ammunition or fine-tuning your brass and bullets to tight tolerances, this tool lets you verify critical dimensions in real time instead of guessing or relying on feel.

Reloading precision starts with knowing your numbers. The Instant Indicator's dial readout (in 0.001" increments) gives you immediate feedback on headspace—how far your fired brass grows after each reload cycle—and on bullet seating depth relative to the lands. Both measurements matter for consistent velocity, pressure curves, and downrange accuracy. Rather than assembling a comparator from loose parts or fumbling with aftermarket indicators, this kit is calibrated and ready to work, so you spend your bench time actually reloading instead of troubleshooting gauges.

For 300 PRC shooters serious about precision rifle work or competitive reloading, having a dedicated headspace and comparator tool on hand is the difference between guesswork and data. The included dial indicator removes one common barrier to adoption—you own it, it's calibrated, and it works with the base and inserts you need for the 300 PRC cartridge.

Key Features

• Dial indicator included and pre-installed—measure immediately without sourcing a separate gauge
• Precision 0.001" increments for headspace and bullet seating depth readings
• Configured for 300 PRC ammunition
• Lets you track brass growth and seating consistency across reloading cycles
• Designed for handloaders prioritizing accuracy and repeatability

Specifications

Frequently Asked Questions

Do I need to buy a separate dial indicator for this tool?

No. This version ships with a dial indicator already included and installed, so you're ready to measure as soon as you unbox it.

What does this tool actually measure?

The Instant Indicator measures headspace—how much your brass grows after firing and resizing—and bullet seating depth relative to the lands. Both are critical for consistent handloaded ammunition.

Is this tool only for 300 PRC?

Yes, this model is configured for 300 PRC cartridges. Other caliber-specific versions are available separately.

What kind of reloading does this tool help with?

It's most valuable for reloaders pursuing precision rifle loads, competitive ammunition, or anyone who wants to track and control brass life and bullet seating consistency across multiple reloading cycles.