Trad Gang

Main Boards => PowWow => Topic started by: buckster on May 15, 2010, 05:28:00 PM

Title: Chronographed 20+ bows today
Post by: buckster on May 15, 2010, 05:28:00 PM
Played around with several of my toys today and thought it might be interesting to take note of the speed.

I shot 3 arrows to determine the average speed. I draw about 27 1/2" and fletch my arrows to where the back of the fletching touches the tip of my nose, as an consistent indicator.  

I shot my hunting arrows  >>>>>------------>> Arrow Dynamics Trad Lights 28.5" long, with a 145 grain point, weighing 480 grains.  

Here are the results:

BOW                 SPECS               FPS

Tall Tines TD RC    58" 51@28           163
Hornes/ME LB kit bow 60" 48@28          150
Bob Lee TD LB       58" 50@28           152
Zipper TD RC        60" 50@28           159
Treadaway Blk Rock TD LB 58" 50@28      148
Reflex Nomad TD RC   60" 50@28"         158
RER TD RC            60" 55@28"         162
Brack Quest TD RC    62" 51@28 3/4"     158
Black Creek Banshee TD 60" 45@28"       143
R. Welch Dakota TD RC 60" 45@28"        150
DAS Elite TD RC       62" 50@28"        159
Rampart TD RC         60" 48@28"        151
DAS Daala TD RC       58" 50@28"        161
Morrison ILF (carbon) 56" 52@28"        158
Samick Stingray       58" 50@28"        142
Quinn Stingray TD     60" 50@28"        154
Kodiak MAG            52" 45@28"        145
Lewis Hollow Hyansanti 62" 50@28"       152
Morrison Dakota TD     60" 49@28"       161
Kota Arch Royal        62" 51@28"       146

A few of my bows like the Black Creek Banshee had a lot of "junk" on the string, so I think that they came in a few FPS slower.  The Kodiak had a dacron string, vrs fast flight on all the others.  Yes... I know I need serious    :help:
Title: Re: Chronographed 20+ bows today
Post by: Flying Dutchman on May 15, 2010, 05:36:00 PM
I don't see the result?
Title: Re: Chronographed 20+ bows today
Post by: buckster on May 15, 2010, 05:51:00 PM
Dutch,
I hit enter permaturely, check it out now buddy!
Title: Re: Chronographed 20+ bows today
Post by: cacciatore on May 15, 2010, 06:00:00 PM
Thanks for your review,good comparison.
Title: Re: Chronographed 20+ bows today
Post by: pdk25 on May 15, 2010, 06:13:00 PM
Hey Barry.  I'm not sure that your result on the Tall Tines bow is reliable.  Sent it to me, and I'll test it myself.  Anything for science.  ;)
Title: Re: Chronographed 20+ bows today
Post by: Matty on May 15, 2010, 07:00:00 PM
Cool, Ive done this before as well on my own, it's Kinda fun
Title: Re: Chronographed 20+ bows today
Post by: BOWMARKS on May 15, 2010, 07:02:00 PM
I dont see why you need help? Looks like your doing pretty good on your own with that collection!!  
  :thumbsup:    :thumbsup:
Title: Re: Chronographed 20+ bows today
Post by: Steve O on May 15, 2010, 08:07:00 PM
Buckster--too bad you are left handed   :saywhat:  

When I chrono'd my TallTines with a few other big name wood handled bows, I got similar results...an extra 10fps.
Title: Re: Chronographed 20+ bows today
Post by: Bjorn on May 15, 2010, 08:33:00 PM
Hey that's great data! If you remove the Samic and the Kota, they are all within a coupla' FPS allowing for #. The Kodiak is really up there once you adjust for # and that B50 string.
Good stuff!
Title: Re: Chronographed 20+ bows today
Post by: stickbowmaniac on May 15, 2010, 09:02:00 PM
Man thats a bunch of bows.Thanks for posting.Great information.
Title: Re: Chronographed 20+ bows today
Post by: A.S. on May 15, 2010, 09:08:00 PM
Good info Barry! I did some similar shooting with my old Bear Hunter. It is 3#'s lighter than most of my bows, and has a Dacron string...and still shot within 10 fps of my new high performance bows!

Gotta love them old bows!!
Title: Re: Chronographed 20+ bows today
Post by: Whip on May 15, 2010, 09:18:00 PM
Very interesting stuff Barry.  Did you by chance verify the draw weights of the various bows?  I'd be curious to see what your measured draw weights are in comparision to the marked weights on that sample of bows.  I've been finding quite a variation between what is marked and what is measured, and that could certainly account for some differences in speed.
Title: Re: Chronographed 20+ bows today
Post by: Bowferd on May 15, 2010, 10:07:00 PM
I like the info, and it just shows me that if a particular bow fits and feels good, the final result would be deadly no matter which you decided to take with you.
As long as your broadheads are sharp, you're arrows are properly tuned, and you're on your game plan, You got'em.
Title: Re: Chronographed 20+ bows today
Post by: Jack Whitmire Jr on May 16, 2010, 05:45:00 AM
What I've thought/said forever, not much difference in any of them. Just shoot what feels good and you have confidence in .


Jack
Title: Re: Chronographed 20+ bows today
Post by: Zradix on May 16, 2010, 06:18:00 AM
Enlightening!!! Thanks
Title: Re: Chronographed 20+ bows today
Post by: eric-thor on May 16, 2010, 07:10:00 AM
hummmm kinda slow accross the board huh? must be because of the shorter draw. my 60@30 thomahawk thunderstorm shoots 602gr. 181fps and 830gr at 161fps .
Title: Re: Chronographed 20+ bows today
Post by: Bow man on May 16, 2010, 07:16:00 AM
Nice Collection
Title: Re: Chronographed 20+ bows today
Post by: Rob DiStefano on May 16, 2010, 08:57:00 AM
though i used to be somewhat concerned about it, i no longer see any need for technically checking bow speed.  

since you need to have a bow to chrono it, it's lots easier and more meaningful to just shoot it at 15-20 yards to know what kinda arc you'll get with a specific arrow weight.  

for the most part, with about the same weight bows 'n' arrows, there ain't much speed difference at the distances we hunt at.  yes, some bows will just be faster - then one needs to assess and compare other features such as stability, pointability and what happens with the bow as the arrow passes the riser (movement, shock, etc.).  ymmv.
Title: Re: Chronographed 20+ bows today
Post by: buckster on May 16, 2010, 09:06:00 AM
Whip,

You observation is indeed a good one.  No, although I haven't yet verified the draw weights on most my bows.  I bet if I did so, I would find that about 1/2 would be off a few lbs either way.  Guess this will give me another idea for my next post when I get another boring Saturday???  He He Haw Haw.

Rob,
You are on right,this experiment proofs that... I just kinda did this for grins since I was caught up on my honey-do list.     :biglaugh:    

As others have mentioned, there isn't too much variance in most of the "current" bows out there, or for that matter the old Bear bows of yesteryear; when coupled with a FF string.

Eric,

A 30" draw is like a turbo charger for your arrows, I would love to see you guys post some results.
Title: Re: Chronographed 20+ bows today
Post by: kennym on May 16, 2010, 09:27:00 AM
"A 30" draw is like a turbo charger for your arrows, I would love to see you guys post some results."


Yep, I did a bit of testing for fun yesterday.

On the one test,from 28" to 30",same bow,same arrow, off shootin machine made 18 fps!   :eek:  

So, a feller might as well get a bow he can handle and crank er clear back as one 10 # too heavy and shortdraw it! You'll get the same speed and a lot more accuracy!   :archer2:
Title: Re: Chronographed 20+ bows today
Post by: KHALVERSON on May 16, 2010, 10:06:00 AM
i have to agree on the extra draw length
i was shootin mid 60# draw weights at 28.75 draw length and have now adopted the rick welch method and am drawing  30  in
my predator  51# @ 28 so right around 56 # at 30 with a 550 grain arrow just flat out rips an arrow
plus my accuracy is way better
the way i see it is less draw weight + longer draw
= better performance ' more accuracy and less fatigue
just my 2 cents
but it seems like a winning  combination
kevin
Title: Re: Chronographed 20+ bows today
Post by: yamapup on May 16, 2010, 01:36:00 PM
Dan Quillian once told me that an extra inch of draw length was good for about ten FPS. That was 20 years ago.
Title: Re: Chronographed 20+ bows today
Post by: eric-thor on May 16, 2010, 08:31:00 PM
idbe happy to test them at my draw just send them all to me . lol could you imagin the shipping cost ?  :knothead:
Title: Re: Chronographed 20+ bows today
Post by: jesse cales on May 16, 2010, 08:34:00 PM
impressive collection barry!
Title: Re: Chronographed 20+ bows today
Post by: Builder on May 16, 2010, 08:46:00 PM
Thanks Barry fun reading. One thing has me confused, how do you catch up on a honey-do list?
Good point Kenny. How often do you stand on a line and watch guys shooting, especially heavy bows and see them release an inch or two from their face.
Title: Re: Chronographed 20+ bows today
Post by: sputterman on May 16, 2010, 09:35:00 PM
Nice work and great info. Double bump Amen to Rob.
Title: Re: Chronographed 20+ bows today
Post by: Bowwild on May 16, 2010, 09:58:00 PM
I bought an Easton Digital bow scale. One of the coolest little devices - my spring scale will never see use again.  I put marks at 28" and my draw 26" and check the two.  As others have said, it is very common for specified weight on the bow to be different than actual.  Also, I'd been adding or deducting too much weight change per inch. On some of my bows the change is only 2 pounds per inch (at least going down from 28 to 26 inches).  I'm not interested in the other direction (beyond 28 inches) because I would never overdraw by going past the corner of the mouth with the index finger because I'd lose the ability to uses back motion to initiate the release. Target panic would result.
Title: Re: Chronographed 20+ bows today
Post by: kbetts on May 16, 2010, 10:00:00 PM
I shoot the exact Nomad, but with 125 grains and on a 28" arrow.  Interesting to see how individuals can differ.  By the way, CenterRest from NAP.