Chinese Chronograph vs Labradar
- Thread starter Florida_Man
- Start date
I've noticed a POI shift on some guns with the clamp on. I am often shooting groups as I measure velocity testing pellets. So I prefer the tripod mount version. I managed to nick one, however, but I just bought another from Aliexpress. Not a big tragedy when they are around $20. The new one reads in fps. I honestly don't know why people spend the money to get "better" chronographs, The little cheap ones work great. My old tripod mount gave a little different velocity than my clamp on. My new tripod reads the same as the clamp on. If they are off 15-20 fps it isn't going to hurt much. I have to juggle inputs to chairgun to get it to match my shooting results at different distances so the possibility the velocity is a little off just gives me a good excuse to try a little different muzzle velocity input.
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I like the china cheap one , does what i need , and if i had to worry about 20FPS i would just give up testing .
had a Caldwell and labradar , Caldwell i shot and the Labradar was to complicated for my use . sold it .
had a Caldwell and labradar , Caldwell i shot and the Labradar was to complicated for my use . sold it .
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Those outputs look great compared to the labradar. They are within about 2% of each other, but more importantly it looks like it tracks well with the labradar regarding speed changes, and this is the more critical matter when tuning. Really just a small offset between the two, which can easily be compensated for since it looks quite consistent. Looking at the SD after applying the offset, the values are within about 0.1% of each other. Way better than I would have expected. If two labradars were run together, I doubt even they would be able to achieve a 0.1% or lower delta.
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Like its clamp-on counterpart, it's sold under lots of different names and generally cheaper from Aliexpress if you don't mind the longer delivery times.
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FYI: Caldwell finally release the VelociRadar at Shot Show in a few weeks. So that's another (relatively) cheap Chinese radar, similar to the Labradar.
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I find one with the FPS/MPS option without tripod or the tripod in MPS. I'm looking for a tripod mount that can be set to FPS. I'll keep looking.
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Tripod version that supports readout in mps or fps:
Confirmation shown in the manual screenshots.
Confirmation shown in the manual screenshots.
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I recently got one from Aliexpress that is tripod mount and will read in fps. You have to push the on/off button during the startup when the screen says "fps" for it to read in fps. If you don't push the button, you get mps.
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I started digging through my stuff and found I had one with fps and mps and English instructions. No tripod mount though. I tried to put the U-bolt over my Falx moderator, but it is too small. That's probably why it's been in the closet unused.
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I have the new Labradar LX now and compared it to the larger chinese model I have. Indoor test
| Average | |||||||||||
| China | 880 | 879 | 876 | 877 | 875 | 881 | 873 | 877 | 874 | 877 | 876.9 |
| Labradar LX | 865 | 864 | 864 | 863 | 865 | 868 | 859 | 867 | 862 | 864 | 864 |
| Difference | 15 | 15 | 12 | 14 | 10 | 13 | 14 | 10 | 12 | 13 | 13 |
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Those bluish clear bits on the base are infrared LEDs to provide light. I orient the base of mine toward the sun if I'm outside or it will give errors.
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Simple way to protect your barrel (shroud) from the clamp of the clamp on is to wrap it with a layer or two of painters tape.
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Sometimes mine continue to wear the blue tape haha
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