Got my Xero out to the range yesterday, couldn't be happier. We have steel tubes set up on our rifle range (CFO requirement due to encroaching residential developments, I guess), maybe 24" diameter. Labradars don't like them, but the Xero worked great. It tells you it wants the unit between 5"-15" behind and the same distance beside the muzzle, and it seems like that's pretty crucial. It missed a couple of shots until I got that dialed in, and then once I knew to pay attention to that it was flawless. It picked up 9mm, .22LR, 45 Colt, 6mm Creed, and some other mid length centerfire some guy was shooting, through the tubes all flawless once I made sure the placement was within the range it wants. Velocities were consistently about 1% slower than a magnetospeed we compared it to, for whatever reason (Magnetospeed reading right at the muzzle, Xero reading slightly downrange? Calibration of one or the other? Who knows). It then picked up 9mm, .50AE, and 460 mag handgun perfectly, didn't miss a single shot. Handgun velocities compared to Labradar were all very close (Within 5ish FPS)
One drawback though, is when it did miss a couple of shots right at the start of the day (I assume due to poor placement), it doesn't tell you. You just really have to pay attention to the round count/velocity, and make sure they change from shot to shot. It'll do the sorta loading screen as if it registered a shot, but then just defaults back to the previous shot #/velocity, without letting you know it didn't get anything for the last shot. Hoping that's something they change in the future.