First Results From F1 Chrony
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Topic: First Results From F1 Chrony (Read 1297 times))
cryptoad
Expert
Posts: 1159
Real Name: Kim
First Results From F1 Chrony
«
on:
April 17, 2014, 09:56:25 PM »
The rifle used was a Beeman Silver Kodiak X2 with the .22 barrel mounted.
RWS Superdome 14.5gr 698.6 fps muzzle fpe=15.72
AA Falcon 13.43gr 653.6 fps muzzle fpe=12.74
CPHP 14.3gr 709.4 fps muzzle fpe=15.98
JSB 18.13 Domed 608.9 fps muzzle fpe=14.93
I just ordered the AA Falcon tin with the chrony and these have proven to be very accurate at 18 yards. Makes me happy!
for grins and giggles, I pumped a Daisy Powerline 35 ten times and shot a JSB 10.34gr pellet and got a reading of 507.7fps which equates to 5.92 fpe at the muzzle.
«
Last Edit: April 17, 2014, 11:29:19 PM by cryptoad
»
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Springfield, Missouri - USA
Airgun.Sniper
GTA Senior Contributor
Posts: 3392
Re: First Results From F1 Chrony
«
Reply #1 on:
April 17, 2014, 10:11:32 PM »
Glad to see some numbers
Cheers
Jay
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Benjamin Maruader Gen II .22 cal LW Barrel
Vortex Viper PST Gen II 5-25x50 FFP MOA
hogrider04
Plinker
Posts: 276
Eternal noobie
Real Name: Jerry
Re: First Results From F1 Chrony
«
Reply #2 on:
April 17, 2014, 11:23:58 PM »
Just curious, where did you come up with your pellet weights? The CPHP's, according to Crosman should be 14.3gr, which would give you an FPE of 15.98. Not sure about the others.
Again, not being critical, just curious.
Jerry
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Douglass, Ks
cryptoad
Expert
Posts: 1159
Real Name: Kim
Re: First Results From F1 Chrony
«
Reply #3 on:
April 17, 2014, 11:28:38 PM »
Jerry, I stand corrected! Thanks for pointing that out. I made the correction to my post.
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Springfield, Missouri - USA
hogrider04
Plinker
Posts: 276
Eternal noobie
Real Name: Jerry
Re: First Results From F1 Chrony
«
Reply #4 on:
April 18, 2014, 12:30:18 AM »
No problem Kim, just keep in mind that those FPS numbers might change some from day to day due to ambient temps and the temp of the rifle itself. What you need to watch for is large variations which could be the sign of a problem.
I bought a chrony and even some pellets scales. Darn near drove myself nuts obsessing over little changes. Finally got over it and decided to enjoy shooting until something broke...................then I will obsess!!!
Jerry
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Douglass, Ks
h2rider
Plinker
Posts: 119
You can ignore the fractional part of the number
«
Reply #5 on:
April 18, 2014, 12:53:00 AM »
The Chronys are supposed to have an accuracy of 1% so the fractional part of the reading is meaningless. A reading of 700 FPS in reality may be from 693 to 707, so no need to record 700.2; just use 700.
I have a Shooting Chrony and love it.
Paul in Liberty County
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Nathan
GTA Senior Contributor
Posts: 2248
Real Name: Nathan
Re: First Results From F1 Chrony
«
Reply #6 on:
April 18, 2014, 10:10:52 AM »
" I pumped a Daisy Powerline 35 ten times "
When I first read your post, what I "saw" was "I pumped a Daisy Powerline
35 times
and I'm thinking how have you not damaged the gun.....
Then I went back and read the post again
D'oh
Nathan
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Evans, Colorado
coyotejoe
Guest
Re: First Results From F1 Chrony
«
Reply #7 on:
April 18, 2014, 11:14:58 AM »
Ha ha ha That was my first glance reading also, pumped 35 times but I got past that on the second glance.
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First Results From F1 Chrony