Trad Gang

Main Boards => PowWow => Topic started by: wtpops on August 07, 2011, 09:54:00 PM

Title: Chronograph tells more than just speed...
Post by: wtpops on August 07, 2011, 09:54:00 PM
I was gifted a Pro chronograph complements of Grinch, Thank you again great gift.

Got it all set up and started putting some arrows through it. First thing i noticed is that i need to work on my anchor and or release. My first 3 arrows were 175, 170 and 173. So i concentrated on getting to anchor and that helped, i started getting much more consistent speeds. I can see already this is going to be a good tool to check if i have a solid consistent anchor and release.

Any way the results for my set up are:

Setup:

Bow:
Black Widow PSA V Ironwood 62"
53# @ 30" drawn to 31"
So about 56# @ 31"
8 Strand Ultracam string
Drawn 3 under
Cat whiskers at 8 and 13"

Arrow:
MFX 340 full length 32"
50-grain brass HIT inserts
175-grain tip
3" 2016 footing
3 5" shield cut fletch
Total arrow weight 635 grains
11.3 gpp
18.8% FOC

Results:

173 fps
172 fps
172 fps

This thing is going to be a blast as well as getting some form feed back and helping with arrow setup as far as getting the best bang out of an arrow. Its going to be a great tool added to my archery tool box.

Thanks again Grinch
Title: Re: Chronograph tells more than just speed...
Post by: Friend on August 07, 2011, 10:22:00 PM
It is a little ironic that Stu's calc has your set-up pegged at 173 fps.

Of my limited experience in comparing actual chrony speeds to the calc, my findings are typically 5 to 6 fps slower and possibly wrongly attributing the delta due to suspecting the calc figures came from a mechanical release. A mechanical release is  on average ~5 fps faster than fingers. Of course there is a large range when it comes to hand relaese variations.

Your divulged set-up appears to be the making of a quick and lethal set-up.
Title: Re: Chronograph tells more than just speed...
Post by: GRINCH on August 07, 2011, 11:08:00 PM
Rick glad it's finally being used,I always shot through a friends chrono at our range never used that one,good tool to have.Larry.
Title: Re: Chronograph tells more than just speed...
Post by: Bjorn on August 07, 2011, 11:36:00 PM
I like the chrono once in a while working on my release it tells you a lot about what is going right or wrong.
Title: Re: Chronograph tells more than just speed...
Post by: pdk25 on August 08, 2011, 12:32:00 AM
Sounds like some pigs are in trouble.
Title: Re: Chronograph tells more than just speed...
Post by: JRY309 on August 08, 2011, 02:40:00 PM
I have a chrono and used mainly for working on a consistent anchor and release.
Title: Re: Chronograph tells more than just speed...
Post by: owlbait on August 08, 2011, 02:58:00 PM
Like you said, good way to check how consistent your form and release is. Another tool to get the "perfection" that we strive for. I have 4 bows that are all close in specs and it was nice to use the chrono to compare and contrast those 4 bows.