Excellent option for a chronograph - Magnetospeed Sporter Barrel Mounted Ballistic Chronograph

If you're into precision shooting, load development, or just like to tinker with ballistics a chronograph is probably on your list of items to get.
Some Chrono's can be finicky with weather conditions, sunlight, placement and distance from muzzle. The magneto Speed seems to not have these issues. It's also very easy and quick to setup. Strap it to your rifle, plug in the display unit, and let 'er rip.
The magneto Speed delivers on quality and usability and is a great option for budget minded folks. Its very straight forward easy to setup out of the box and is accurate when properly installed on the barrel of a firearm. We tested the unit on a Savage model 60 .17HMR using 17g ammunition with an advertised fps of 2350 on the box. The average speed from 5 shots was 2348.
Overall for the price point, ease of use, and small size this unit works for us. We recommend it to everyone who asks our opinion of it.