FX Outdoors True Ballistics Chronograph

I’ll start by saying I’ve used a Magnetospeed Sporter for load development for the past few years, so I’m a bit spoiled when it comes to “not missing shots”. The only complaint I have with the Magnetospeed is it’s attachment method being tied to the barrel. I understand there are tools out there to mount it to a chassis, but 3 of 4 of my centerfire rifles are in traditional stocks. With the Magnetospeed I couldn’t shoot for groups at the same time as measuring velocity. Long story short that was a burden. Today I brought the FX chronograph to the range for the first time. It didn’t miss a shot, and I would say my attention to detail on aiming the chronograph was a 4 out of 5. I was doing load work up, but used previously loaded ammo and/or factory ammo to compare measured velocity to my Magnetospeed. The 2 cartridges measured were 22-250 Remington (small and fast), and 300 PRC (big and slow-ish). Each shot used to compare chronographs for the PRC were within 3 FPS, and each shot for the 22-250 were within 7 FPS. I give this product a 5 star rating based on one range trip. Couldn’t be happier so far. Fairly compact and easy/quick setup. I did use the phone app to study strings after each set of shots. Seemed to work well. One anomaly I noticed is one of the shots recorded 1 FPS faster on the app than on the device. I feel compelled to also note that prior to purchasing the FX chronograph I purchased a Speedtracker Mach 4 (not “+”). I had nothing but problems with it, but I will say I was trying to use it on a tripod near the barrel and not mounted to the firearm. I’ve heard the newer version of the Speedtracker Mach 4 (“+”) is more forgiving and tends to work better mounted to a tripod.