Chrono ing the Micro

Crossbow Hunting

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strum
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Re: Chrono ing the Micro

Post by strum »

nchunterkw wrote:Seems low to me. Even using a very conservative 1fps lost for every 3 gr increase I get

415gr-350gr = 65gr
65gr/3gr/fps = 21.67fps (loss)
335fps-21.67 = 313.33fps
X2..
Ill have to go out in the sun to test farther ..but I cant wrap my head around why it would make a slower reading..
My understanding is the Chrony eyes work off the shadow of the projectile as it passes over each and calculates the time from on to the other..
when using outside I have always got varied reading because the light was constantly changing.so to me a good solid constant light source should give the most accurate readings.
I don't know how many times I have been frustrated with errors and off the wall reading while shooting outside.
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John3:16
newbie
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Re: Chrono ing the Micro

Post by newbie »

nchunterkw wrote:Seems low to me. Even using a very conservative 1fps lost for every 3 gr increase I get

415gr-350gr = 65gr
65gr/3gr/fps = 21.67fps (loss)
335fps-21.67 = 313.33fps
we dont know what bow he was shooting.
Kandy-a.k.a Raid
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nchunterkw
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Re: Chrono ing the Micro

Post by nchunterkw »

newbie wrote:
nchunterkw wrote:Seems low to me. Even using a very conservative 1fps lost for every 3 gr increase I get

415gr-350gr = 65gr
65gr/3gr/fps = 21.67fps (loss)
335fps-21.67 = 313.33fps
we dont know what bow he was shooting.
A very good point indeed! :lol: There I was trying to be a star Mathlete again but instead just fumbled........
Keith
Stand by the roads and look, and ask for the ancient paths; where the good way is,
and walk in it and find rest for your souls. - Jer 6:16

Micro 335 & 355
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nchunterkw
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Re: Chrono ing the Micro

Post by nchunterkw »

strum wrote:
nchunterkw wrote:Seems low to me. Even using a very conservative 1fps lost for every 3 gr increase I get

415gr-350gr = 65gr
65gr/3gr/fps = 21.67fps (loss)
335fps-21.67 = 313.33fps
X2..
Ill have to go out in the sun to test farther ..but I cant wrap my head around why it would make a slower reading..
My understanding is the Chrony eyes work off the shadow of the projectile as it passes over each and calculates the time from on to the other..
when using outside I have always got varied reading because the light was constantly changing.so to me a good solid constant light source should give the most accurate readings.
I don't know how many times I have been frustrated with errors and off the wall reading while shooting outside.
I could see where using a long pointy tip (like a BH) would cause error, because it would cast a different shadow depending on rotation. Should always use a FP. Also, the eyes have a sweet spot distance above them that you want to pass the arrow through. For my F1 it's 4" to 6" above the eye. I marked these distances on my light shield bars in red, and then when I setup I use a laser boresighter sitting in the rail to make sure I am in the middle of the sweet spot. The F1 is drilled on the bottom for a standard camera tripod attachment, so I put it on that so it's easy to adjust the height.
Keith
Stand by the roads and look, and ask for the ancient paths; where the good way is,
and walk in it and find rest for your souls. - Jer 6:16

Micro 335 & 355
deerboyarchery.wixsite.com/trinitystrings
[email protected]
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Canuck Archer
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Re: Chrono ing the Micro

Post by Canuck Archer »

tested outside on an f1 chrony
350gr=346fps
385 gr=326fps
425 gr=312fps
this is the camo version which is supposed to be slower....
If dogs don't go to heaven, I want to go where they go....
xcaliber
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Re: Chrono ing the Micro

Post by xcaliber »

Canuck Archer wrote:tested outside on an f1 chrony
350gr=346fps
385 gr=326fps
425 gr=312fps
this is the camo version which is supposed to be slower....
I have to check mine again with the lighter arrows I'm flinging now. Great speeds the Canuck!
It’s not the way you rock, it’s the way that you roll!
strum
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Location: Blairsville Ga.

Re: Chrono ing the Micro

Post by strum »

xcaliber wrote:
Canuck Archer wrote:tested outside on an f1 chrony
350gr=346fps
385 gr=326fps
425 gr=312fps
this is the camo version which is supposed to be slower....
I have to check mine again with the lighter arrows I'm flinging now. Great speeds the Canuck!
Dan you were asked..
Micro RTX
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xcaliber
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Re: Chrono ing the Micro

Post by xcaliber »

Asked what? I only read my friends PM's.
It’s not the way you rock, it’s the way that you roll!
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