Description

Caldwell Precision Chrono Kit | Optical Chronograph | Bluetooth App Integration

Every shooter eventually reaches the same crossroads:

You either keep guessing…
or you start measuring.

The Caldwell Precision Chrono Kit exists as the entry point into disciplined velocity measurement — a practical, proven optical chronograph designed for shooters who want real data without complexity, heavy cost, or specialized setup.

This is not a radar unit.
It doesn’t pretend to be.

It is a clear, reliable optical chronograph that has introduced thousands of shooters to the discipline of measuring velocity instead of assuming it.

What This Tool Does Well

The Caldwell Precision Chrono Kit measures projectile velocity by tracking the projectile as it passes over extra-wide optical sensors, making it suitable for a wide range of applications:

• Centerfire and rimfire firearms

• Archery and crossbows

• Airguns

• Paintball (for field compliance and safety)

Its wide sun screens increase reliability in variable lighting, while Bluetooth connectivity allows velocity strings to be logged digitally rather than scribbled on paper.

For shooters beginning load development or validating factory ammunition, this tool answers the most important first question:

“What is my velocity actually doing?”

Bluetooth Logging for Real-World Use

Paired with the Caldwell mobile app, shooters can:

• Record shot strings digitally

• Calculate average velocity, ES, and SD

• Store data across multiple sessions

• Reduce transcription errors

It’s not about chasing perfection — it’s about building awareness.

Where This Chronograph Fits Best

• New and intermediate reloaders

• Shooters validating factory ammunition

• Archers and airgun users needing safe, consistent velocity measurement

• Clubs and ranges checking compliance

• Anyone who wants data before upgrading to radar-based systems

This is a baseline tool, and it performs that role well.

Referenced In:

• Shooter’s Edge Magazine — Issue No. 1
  Ballistics Bench — The Velocity Window (Upper Edge)

Related Chapter & Technical Notes:

• CHAPTER 5 — Factory Loads Landscape

• Chapter 9 — Cartridge Family & Variants

• TN-11 — Factory Ammo Consistency Studies (6.5 Creedmoor)

• TN-08 — Velocity Window Optimization

• TN-24 — Drop & Drift Table (100–1,200 yd)

Specifications

• Brand: Caldwell
• Model: Precision Chrono Kit
• Measurement Type: Optical Chronograph
• Accuracy: ±0.25%
• Bluetooth: Yes
• App Support: Caldwell Ballistic Precision App
• Display: App-based (Bluetooth)
• Sensor Type: Optical (Extra-Wide Sun Screens)
• Compatible Platforms: Firearms, Archery, Airguns, Paintball
• Color: Green
• UPC: 661120747482
• MFR #: 4001147