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Feb 12th, 2024
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 Re: How fast does your bow shoot?
[Re: Beman Deamon]
#397167
08/14/08 12:23 AM
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Joined: Oct 2004
Posts: 3,529
BigBow
Extreme Tracker
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Extreme Tracker
Joined: Oct 2004
Posts: 3,529 |
Calculated Speed: 302 fps
Kinetic Energy: 80.62
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Re: How fast does your bow shoot?
[Re: BigBow]
#397168
08/14/08 12:23 AM
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Joined: Oct 2004
Posts: 3,529
BigBow
Extreme Tracker
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Extreme Tracker
Joined: Oct 2004
Posts: 3,529 |
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Re: How fast does your bow shoot?
[Re: BigBow]
#397169
08/14/08 01:45 AM
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Joined: Jul 2007
Posts: 35,166
Brother in-law
OP
THF Celebrity
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OP
THF Celebrity
Joined: Jul 2007
Posts: 35,166 |
bigbow , what numbers are you putting in to get your calcs for that hoyt?
How much weight for peep, vanes etc?
Im trying to see my #'s compared to yours
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Re: How fast does your bow shoot?
[Re: Brother in-law]
#397170
08/14/08 02:24 AM
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Joined: Jul 2008
Posts: 380
FinFowlAndWhitetail
Bird Dog
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Bird Dog
Joined: Jul 2008
Posts: 380 |
hoyt raptor 73lb pull 251fps slow but fast enough
Everyone should have something to believe in, I believe I will go hunting
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Re: How fast does your bow shoot?
[Re: Brother in-law]
#397171
08/14/08 11:16 AM
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Joined: Sep 2004
Posts: 4,187
OFBHWG
Extreme Tracker
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Extreme Tracker
Joined: Sep 2004
Posts: 4,187 |
When you need a Piano moved there is always someone around to help you with the stool!
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Re: How fast does your bow shoot?
[Re: OFBHWG]
#397172
08/14/08 12:04 PM
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Joined: Oct 2004
Posts: 3,529
BigBow
Extreme Tracker
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Extreme Tracker
Joined: Oct 2004
Posts: 3,529 |
here is mine
Total Arrow Weight: 395
Bow IBO Speed: 330
Adjustment for Draw Length: -10
Adjustment for Draw Weight: 0
Adjustment for Arrow Weight: -15
Adjustment for Weight on String: -2
Calculated Speed: 303 fps
Kinetic Energy: 80.54
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Re: How fast does your bow shoot?
[Re: BigBow]
#397173
08/14/08 12:06 PM
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Joined: Oct 2004
Posts: 3,529
BigBow
Extreme Tracker
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Extreme Tracker
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draw 29
lbs 70
total arrow 395
string 5
you need to weigh your arrow it's eaiser then putting in all the little stuff, go to a bow shop they will have a scale....
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Re: How fast does your bow shoot?
[Re: BigBow]
#397174
08/14/08 12:58 PM
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Joined: Jun 2006
Posts: 196
EliteShooter
Woodsman
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Woodsman
Joined: Jun 2006
Posts: 196 |
Total Arrow Weight: 475
Bow IBO Speed: 330
Adjustment for Draw Length: 0
Adjustment for Draw Weight: 44
Adjustment for Arrow Weight: -42
Adjustment for Weight on String: -2
Calculated Speed: 330 fps
Kinetic Energy: 114.89
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Re: How fast does your bow shoot?
[Re: Beman Deamon]
#397175
08/14/08 01:04 PM
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Joined: Dec 2006
Posts: 20,758
cbump
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Quote:
Whisper Creek 29" draw 68# 427gr 26" carbon, Thanks to BigBow I know Know "The KE of your arrow is 94.8ft-lbs.
Your arrow speed is 215.5MPH. and 316fps" Thats darn close!
My avg Fps is 5 fps faster!! Great link!
I am not buying that you are getting 316 fps with the setup you have stated at all.
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Re: How fast does your bow shoot?
[Re: cbump]
#397176
08/14/08 01:11 PM
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Joined: Dec 2006
Posts: 20,758
cbump
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yeah I went and checked and the Whisper Creek Innovator is 315 fps ibo which is with 30" draw, 70 lb dw and 350 grain arrow. You are shooting less draw weight, 1 inch shorter dl, and a heavier than ibo arrow. No way you get 316.
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Re: How fast does your bow shoot?
[Re: cbump]
#397177
08/14/08 01:14 PM
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Joined: Jun 2006
Posts: 196
EliteShooter
Woodsman
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Woodsman
Joined: Jun 2006
Posts: 196 |
I have to agree with cbump here.
With my Synergy set at 71lbs. 30" 410gr 30" carbon arrow and around 7 gr of weight on the string I am getting. With the same calculator, 290fps with 76.58KE
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Re: How fast does your bow shoot?
[Re: EliteShooter]
#397178
08/14/08 01:18 PM
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Joined: Dec 2006
Posts: 20,758
cbump
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I ran your numbers Beman Deamon and came up with:
Total Arrow Weight: 427
Bow IBO Speed: 315
Adjustment for Draw Length: -10
Adjustment for Draw Weight: -4
Adjustment for Arrow Weight: -26
Adjustment for Weight on String: -5
Calculated Speed: 270 fps
Kinetic Energy: 69.14
I used a conservative 15 grains on the strings which is probably low because in the pics you posted of your bow you have the peep with the rubber string and all those string leaches.
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Re: How fast does your bow shoot?
[Re: cbump]
#397179
08/14/08 02:22 PM
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Joined: Jul 2007
Posts: 35,166
Brother in-law
OP
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OP
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Posts: 35,166 |
somebody do this
ibo - 320
draw - 30
300 gr. arrow
29" arrow
65lbs
What number you get?
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Re: How fast does your bow shoot?
[Re: Brother in-law]
#397180
08/14/08 02:26 PM
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Joined: Dec 2006
Posts: 20,758
cbump
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Total Arrow Weight: 300
Bow IBO Speed: 320
Adjustment for Draw Length: 0
Adjustment for Draw Weight: -10
Adjustment for Arrow Weight: 17
Adjustment for Weight on String: -5
Calculated Speed: 322 fps
Kinetic Energy: 69.09
depending on what you have on the string...i put in 15 grains
Reason it is higher than ibo is because technically 300 grain arrow is too light for 65 grains...ibo is 5 grains per lb of draw weight.
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Re: How fast does your bow shoot?
[Re: cbump]
#397181
08/14/08 02:28 PM
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Joined: Jul 2007
Posts: 35,166
Brother in-law
OP
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OP
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So is my arrow to light? My bowsmith that is not a retard and has good customer service said the 300's will do fine.
Im a second year bowhunter so im very much learning. On arrow I always forget, the lower the number or higher means the stiffness etc?
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Re: How fast does your bow shoot?
[Re: Brother in-law]
#397182
08/14/08 02:33 PM
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Joined: Dec 2006
Posts: 20,758
cbump
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Ohhh if you are talking about the number on the shaft like (axis 300s) that is not the weight of the arrow...
if your arrow is really 300 grains and you are shooting them at 65 lbs then it would void the warranty on your bow. 5 grains per pund of dw is standard minimum. I don't think 25 grains less is gonna hurt anything but the lighter your arrow the less energy it can take therefore causing the arrow (or your limbs) to possibly crack.
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Re: How fast does your bow shoot?
[Re: cbump]
#397183
08/14/08 02:42 PM
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Joined: Oct 2004
Posts: 3,529
BigBow
Extreme Tracker
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Extreme Tracker
Joined: Oct 2004
Posts: 3,529 |
dont for get the weight of your braod head...
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Re: How fast does your bow shoot?
[Re: cbump]
#397184
08/14/08 02:42 PM
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Joined: Jul 2007
Posts: 35,166
Brother in-law
OP
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OP
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Weird, cuz they sold me the 300's and they are a top Mathews dealer. they are 10.1 gpi. So should I move up?
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Re: How fast does your bow shoot?
[Re: EliteShooter]
#397185
08/14/08 02:43 PM
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Joined: Oct 2004
Posts: 3,529
BigBow
Extreme Tracker
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Quote:
Total Arrow Weight: 475
Bow IBO Speed: 330
Adjustment for Draw Length: 0
Adjustment for Draw Weight: 44
Adjustment for Arrow Weight: -42
Adjustment for Weight on String: -2
Calculated Speed: 330 fps
Kinetic Energy: 114.89
what is your weight??? dang that is fast.... 
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Re: How fast does your bow shoot?
[Re: Brother in-law]
#397186
08/14/08 02:48 PM
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Joined: Dec 2006
Posts: 20,758
cbump
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Quote:
Weird, cuz they sold me the 300's and they are a top Mathews dealer. they are 10.1 gpi. So should I move up?
No, like I said the number on the shaft (300) is not the weight of the arrow. That is the spine (stiffness)
If your arrows are 10 gpi or whatever and I am assuming that you have a 29 inch arrow or so that is 290 plus 100 for broadhead plus 15 or so for inserts and nock plus weight of vanes....you are well over 400 grains which is fine.
When you get a chance weigh your finished arrow and then you can do the calculator again with the correct weight.
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Re: How fast does your bow shoot?
[Re: BigBow]
#397187
08/14/08 03:49 PM
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Joined: Jun 2006
Posts: 196
EliteShooter
Woodsman
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Woodsman
Joined: Jun 2006
Posts: 196 |
Quote:
Quote:
Total Arrow Weight: 475
Bow IBO Speed: 330
Adjustment for Draw Length: 0
Adjustment for Draw Weight: 44
Adjustment for Arrow Weight: -42
Adjustment for Weight on String: -2
Calculated Speed: 330 fps
Kinetic Energy: 114.89
what is your weight??? dang that is fast....
This bow is the one set at 92#'s
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Re: How fast does your bow shoot?
[Re: EliteShooter]
#397188
08/14/08 04:36 PM
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Joined: Oct 2004
Posts: 3,529
BigBow
Extreme Tracker
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Extreme Tracker
Joined: Oct 2004
Posts: 3,529 |
son of'a...............92#
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Re: How fast does your bow shoot?
[Re: Brother in-law]
#397189
08/14/08 05:20 PM
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Joined: Aug 2008
Posts: 460
Beman Deamon
Bird Dog
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Bird Dog
Joined: Aug 2008
Posts: 460 |
I punched in the ## and that what it came up with. what site did you use? Chron'd I get 321fps all day. I have never checked it with anything but my hunting arrows. Hell I dont have anyother arrows.  Dont know what to say to ya.
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Re: How fast does your bow shoot?
[Re: Beman Deamon]
#397190
08/14/08 05:23 PM
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Joined: Dec 2006
Posts: 20,758
cbump
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Your chrono is wrong if you are using the info you gave us...
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Re: How fast does your bow shoot?
[Re: cbump]
#397191
08/14/08 05:25 PM
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Joined: Aug 2008
Posts: 460
Beman Deamon
Bird Dog
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Bird Dog
Joined: Aug 2008
Posts: 460 |
Using the 2nd site it is calculated slower. HUMM Sound like Diff in programmers opinion.
Second test results:Total Arrow Weight: 427
Bow IBO Speed: 350
Adjustment for Draw Length: -10
Adjustment for Draw Weight: -4
Adjustment for Arrow Weight: -26
Adjustment for Weight on String: -2
Calculated Speed: 308 fps
Kinetic Energy: 89.97
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