Here in Houston after about 10 am my chrony gives high inconsistent readings ,I assume it is the angle of the sun on the unit.This happens all year long.
Sean

A few years back I owned both a Oehler 35P and a Chrony. If you're familiar with the Oehler, it uses three sky screens and takes a velocity reading between the first and second screens and between the first and third screen. It verifies that the readings match and are valid. The sky screens can be placed at any spacing you like, most use a 10' piece of conduit, or 5' spacing. It's a really neat setup. The Chrony on the other hand is a simple unit with two sky screens and they are 12" apart. One day at the range I put the Chrony inside the spacing of the Oehler's screens, between the first and second screens, essentially taking 3 readings for every shot. What I found was pretty impressive. The little Chrony was NEVER off by more than 1 fps on any shot. The Oehler cost in the neighborhood of $350, the Chrony costs around $75. Well, I can tell you one thing, I sold the Oehler. It was bulky to transport, expensive and hard to setup. The Chrony, you unfold it put it on a tripod and attach the diffusers, and you're ready to go. It also transports in a case no bigger than a pistol case.
So, as to accuracy, they're accurate as all get out, even the cheap ones.

Hart, My Beta chrony did the same thing. I fooled around with it and sent it back twice and they completely replaced it and still get readings when it wants to give them and not when it doesn't. Previous post seem to be accurate as I have two buddies with the same product and it never fails to give them numbers. I replaced mine with a Oehler p35 this year and I do indeed get numbers in all lights with each bullet. I just don't have time to spend half a day packing all my crap up, drive nearly an hour to a range, try to check out loads for two or three guns and not get numbers to go with the loads. Then what do you have? You still don't know if your loads are any good or too warm or what. I am sorry I waited to get a good piece of equipment and wasted a couple of years putzing around with a cheap one that refused to deliver the goods. If you got a good Beta Chrony, more power to you. Life is just too short to put up with stuff that will not perform for me. "D"