Donation

All Springer/NP/PCP Air Gun Discussion General > Big Bore AirGun Gate

Tricks for getting chrony readings?

<< < (2/6) > >>

PasadenaMike:

--- Quote from: gendoc on January 09, 2023, 06:29:26 PM ---
--- Quote from: MikeCarter on January 09, 2023, 09:45:06 AM ---
--- Quote from: rkr on January 09, 2023, 09:35:53 AM ---I have one of those chinese chronos as well but it doesn't work any better, the big airblast keeps giving way too high readings. I should be shooting around 800 fps (barrel limited) with current tune so it's not that powerful, just blowing out a lot of air that confuses the chrony.

--- End quote ---

Problem solved https://utahairguns.com/fx-pocket-chronograph/

--- End quote ---

what he said ...................^^^^^^^^^^^^^^^^

--- End quote ---

Pricey? A little bit. Worth it? Every penny.

ballisticboy:
I personally would never dream of using a radar chrono indoors. Over the last 20 years or more, muzzle velocity radars have caused more problems on our trials than anything else. There are just too many things indoors which can give spurious signals and false readings, many of which you will be unaware of with only one unit operating for each shot. Even the professional instrumentation engineers were surprised at the differences in readings between multiple units when we insisted in having two radars for each shot.

To reduce the blast problem, I would suggest firing through a hole in a plate to strip most of the air away. Some will still follow the bullet and may still interfere with the chrono, but the amount of air will be reduced.

PasadenaMike:
I like mine. I’m no rocket surgeon but I’ve tested in my work van, shop, outdoors in the sun, shade and everywhere,  garage (hoarder mode and cleaned out) kids play room, bathroom, bedroom. As long as the pellet trap is 3 feet away and the fx chronograph is placed correctly basically under the muzzle it gives consistent readings. Im not launching spaceships just reading pellet velocities. Works for me:) oh and it fits in my pocket.

gendoc:
i also have used it and compared it to several others. it works and works well.
every now and then it does give a "no read" but thats just fine because i'm not testing
hole shots from pro-modified dragsters !

starlingassassin:

--- Quote from: MikeCarter on January 09, 2023, 09:45:06 AM ---
--- Quote from: rkr on January 09, 2023, 09:35:53 AM ---I have one of those chinese chronos as well but it doesn't work any better, the big airblast keeps giving way too high readings. I should be shooting around 800 fps (barrel limited) with current tune so it's not that powerful, just blowing out a lot of air that confuses the chrony.

--- End quote ---

Problem solved https://utahairguns.com/fx-pocket-chronograph/

--- End quote ---



gotta heavily agree with that solution,
id be lost without mine lol

Navigation

[0] Message Index

[#] Next page

[*] Previous page