Billll
Member
I have a shooting chrony, model F1 which works well outdoors with lots of light, but not so well at my indoor range. The indoor range has fluorescent lighting which interferes with the chrony so I came up with some mods. First I added some incandescent lights, directed upwards. Secondly I changed the screens to some opaque white ones to force the photo sensors to rely on reflected incandescent light only. Last I placed a piece of cardboard over the top of the setup to help screen out the fluorescent light.
The machine seems to be fairly reliably giving me about twice the actual bullet velocity. I suspect that some of the fluorescent light is getting to the sensors in spite of all that work. Shown here outdoors without the cover.
Anyone else try this?
The machine seems to be fairly reliably giving me about twice the actual bullet velocity. I suspect that some of the fluorescent light is getting to the sensors in spite of all that work. Shown here outdoors without the cover.
Anyone else try this?
