Prochrono Ltd Ballistic Chronograph

The Prochrono Ltd Ballistic Chronograph is a precision shot-speed measurement tool built for hunters, competitive shooters, reloaders, and anyone who needs to validate ammunition performance downrange. Competition Electronics Inc. has been refining chronograph technology since 1985, and this generation brings improved circuitry, a refined enclosure, and a faster internal shot clock—all designed to give you velocity readings accurate to ±0.5% or better. Whether you're developing handloads, testing factory ammunition, or documenting real-world ballistics, a reliable chronograph removes the guesswork from your ballistic calculations.

This model handles a variety of projectiles and light conditions, making it genuinely versatile. You can use it to measure velocity from firearms and shotguns, as well as airguns and other projectiles. The built-in operating system stores multiple shot strings and calculates statistics—average velocity, extreme spread, standard deviation—so you can assess consistency at a glance. It comes equipped for outdoor use right out of the box; if you plan indoor sessions, Competition Electronics offers an optional lighting system to improve sensor performance in low light.

The chronograph runs on a standard 9-volt alkaline battery (sold separately) and delivers 20+ hours of operation per cell. It's made in the USA and backed by Competition Electronics' reputation for real customer support and available replacement parts. If precision velocity data is part of your load development or hunting prep routine, this proven design takes the guesswork out of knowing what your ammunition actually does.

Key Features

• Velocity accuracy to ±0.5% or better for reliable ballistic data
• Multiple shot string memory and built-in statistics (average velocity, extreme spread, standard deviation)
• Sensor system compatible with varied light conditions and projectile types
• Faster internal shot clock for improved measurement precision
• Complete outdoor setup included; optional indoor lighting system available separately
• Made in the USA with long-term parts availability and customer support
• Works with firearms, shotguns, airguns, and other projectiles

Specifications

Frequently Asked Questions

Can I use this chronograph indoors?

Yes, but the sensor performs best in outdoor light by default. Competition Electronics offers an optional Indoor Lighting System (part# CEI-4100) to improve accuracy in low-light indoor ranges.

What comes in the box?

Everything needed for outdoor use is included. You'll need to supply your own 9-volt alkaline battery to operate it.

What does the chronograph measure besides firearms?

The Prochrono Ltd works with shotguns, airguns, archery, and paintball—any projectile the sensor can track reliably.

How long does a battery last?

A single 9-volt alkaline battery provides 20+ hours of operation.