Units purchased directly from the manufacturer also carry a 30-day money-back guarantee. V3 components are backwardly compatible with V1 and V2 models, and all units come with a 2-year warranty. The new V3 model was released just after our test and includes an improved, smaller display with a 9-volt or two CR123 batteries instead of four AAAs, updatable firmware, a rapid-fire mode and enhanced operation for airguns and shotguns, for an MSRP of $399 through MidwayUSA and others. Otherwise, our V2 model (the V1 was released in 2011) worked flawlessly. The current configuration won’t work with a bow or semi-auto pistols that tip the barrel each cycle. The MS consistently clocked the Sierra boat tail at an average 24.3 FPS faster, which makes sense since the measurements are taken right at the muzzle instead of 15 feet down range as with the Oehler. 223/77grain groups from an NM Armalite M15A2 and found the results to be very close. 458 CAL.)” or “.22/Shot/Slug (Lead or thin copper plating).” We tested the MS concurrently with our Oehler Model 36 chronograph while shooting Atlanta Arms & Ammo match. MS makes this easy by using plain-English descriptions such as the default setting of “Copper+Lead (.223. This technology requires choosing a bullet type and density. After a review of the one-page quick-start guide, we were able to toggle between easy-to-understand screens that automatically “wake-up” when the retractable data cable is inserted. The archived results can be reviewed on the display or transported to a laptop with the included microSD card. The battery-powered display runs for 30-100 hours depending on use of the backlight. The display has been logically programmed to list high and low velocities mean, extreme spread and deviation values. The MagnetoSpeed chronogrophs use ground breaking electromagnetic sensors, instead of problematic optical sensors, to eliminate common chronograph problems. Thanks to an intuitive design, there’s not much of a learning curve with the MS chronograph. Our first question was: “How to avoid shooting the sensor?” That was easily solved with the included ¼ inch alignment rod and spacers that ensure proper clearances. As shown above, there are no screens, tripods or even light required because the unit is measuring magnetic pulses rather than shadows cast with lights and measured with optical sensors. The folks at MagnetoSpeed (MS) in Austin, TX, have built a better mousetrap. In can also accommodate muzzle brakes and flash. At 30K frames per second, the image is blurred, but illustrates the unique concept of a chronograph designed around magnetic sensors. The MagnetoSpeed Sporter chronograph was designed to be used on barrels from 1/2 inch up to 1 inch in diameter.
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