Chronograph problems

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Palladin

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Having some problems with my new F1 Chronograph. Works fine with an overcast ceiling but as soon as the sun hits it I start getting error messages or no readings at all. Tried adjusting the screens etc but results were unreliable. Wondering if I should attached a larger translucent sheet over top of the unit and support it with the existing supports to correct the problem. Would appreciate any suggestions or recommendations.

Thanks,
Palladin
 
yes on sunny days you will have trouble unless you use defusers, If you have tried that , than yes put something over it (white) and that should do it. it needs the white background to see the bullet going over the eyes to get the right reading. hope this helps
 
I've pretty much worn out my screens, but you might want to try messing around with good old cardboard. It works fine (it's all about shadows). P.S. watch out for those muzzleloader/shotgun sabots, I toasted one of mine without thinking (sabot busted my digital readout board). All i had to do was put up some protector in front of it (duh). Also watch your distance from muzzle. my .378 will lay the tall grass down for about 12 feet in front of the muzzle.
 
I agree, I don't think the color of the diffuser is important, my Oehler uses solid plastic that doesn't allow any light through, just makes a shadow. When I chronograph rifles of greater powder capacity than the .30/06 I move back to 15'.
 
Diffuser cover

Does the Oehler diffuser cover the entire unit ? As you may know the F1 has two collapsable plastic covers which barely cover the sensors. I'm thinking of laying a large translucent plastic sheet over top and somehow fixing it to the existing diffusers....?? Has anybody tried this or another fix??

Thanks,
Palladin
 
The Oehler diffuser doesn't cover the entire screen width, my screens are 6' apart, but they are 5.25" wide. I doubt if the differs need to be translucent, but as long as it doesn't flap in the wind it should be fine. If you used a tarp of something similar and the wind made it flap it could cause a false reading. I'd try a piece of cardboard as suggested by Zthou first off, it that didn't work then look for something else.
 
zthou said:
I've pretty much worn out my screens, but you might want to try messing around with good old cardboard....
Click to expand...

I have an ancient Chrony that I picked up at a gun show and it came with a couple of really battered (factory) screens made of cardboard. I had thought that the screens needed to be translucent but apparently not, although I recall that one manufacturer makes an artifically-lighted screen for indoor use. There has to be enough ambient light for the sensors to “see” the bullet against the screen. Not usually a problem outdoors.

Downwindtracker- good idea. I’m making new screens for my Chrony and I think I'll try some white Coroplast. Rigid and durable.

:) Stuart
 
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