How accurate is your chronograph?

[NateChrony]

I suspect that their "calibration" involves something like artificially stimulating the sensors in sequence with a light source, or something along those lines. Perhaps just adjusting their prescaled clock freq. It's almost certainly automated. I guarantee that for their price and volume they aren't firing projectiles over them and a calibration chrono. An assumption, to be sure, but I'm pretty confident in it. It would be interesting to know definitively.

GsT

Overall it appears they're well thought through - i'd have pretty high confidence in their process & methodology.

Radars... there's been some really good talk on other forums from guys that have worked with radar for 40+ years, they basically giggle when radar Chrony's come up.

 

[NateChrony]

No idea. Never realized it was a problem for others. This is literally the first post I’ve seen with accuracy concerns with a Chronograph.

But then I didn’t buy mine to check its accuracy.
I got it to give me numbers to work with.

Who does a heap of back to back comparisons in all conditions - it'd be expensive & most YT channels are somewhat "shills" for specific brands.

I've literally calibrated 1000's of chronographs & my OCD has made it an interesting adventure.
Things like how its mounted or fixed, even vibrations are INCREDIBLY influential on the results, unless you're doing LOADS & LOADS of testing you wont pick these things up.

Its also just a LOAD of marketing - put some decimals in the results & people assume they're more accurate & those decimals arent just spitting out the same numbers over & over & over again

 

[Struckat]

I operate in a vacuum . My guns, my expectations, my instruments and my results. It doesn't matter if my China device is correct as long that’s what I use. I have two and they read the same.

 

[Dan Malkerson]

Well we are approximately half way there .

we are a lot farther than that

 

[Trucker3573]

we are a lot farther than that

You are probably correct on that. Lol

 

[Bedrock Bob]

My chronograph numbers will vary with changes in light, temperature, altitude and distance away from the first sensor.

Even if my chronograph gives me exact numbers those numbers will vary with a whole bunch of external variables.

I don't care if there's a small drop or gain between checks as long as the spread is low. Data collected on one afternoon may not match others. If I see a steady decline between checks then I know things are slowing down. But as long as the spread is low and it will drop them close together the exact velocity isn't that important to me. I just aim a little higher.

I've always plotted the arc of the pellet by shooting targets at various ranges rather than calculating the curve using a ballistics program. When I have plugged my data into the ballistics program it was pretty close to my field data. I think the variation was more about the numbers for pellet BC than chrono error.