[Deer30]

Does this sound right to you?

62 pounds 336 grain arrow 275 fps
62 pounds 338 grain arrow 273 fps
At 28 inch draw. No string leaches just a peep.

 

[rutnstrut74]

What is your limb poundage rating? The Cardiac cam is producing at it's highest efficiency at or near bottomed out. I used to shoot 70# limbs backed out to 64# but my Cardiac has 60# limbs bottomed out at 63#. my speed is 29"DL, 380gr. AW, 276 fps. That is with peep, D-loop and flatline string silencers. :sad:

 

[Deer30]

Sorry I guess that is important. 60lb limbs

 

[Guest]

This is what I get for your bow:

Total Arrow Weight: 337
Bow IBO Speed: 320
Adjustment for Draw Length: -20
Adjustment for Draw Weight: -16
Adjustment for Arrow Weight: 4
Adjustment for Weight on String: -7
Calculated Speed: 281 fps
Kinetic Energy: 59.1

you seem to be a lil slower than calculated, might need to look atthe timing.

This is what came up for Rutnstruts bow:
Total Arrow Weight: 380
Bow IBO Speed: 320
Adjustment for Draw Length: -10
Adjustment for Draw Weight: -14
Adjustment for Arrow Weight: -10
Adjustment for Weight on String: -11
Calculated Speed: 275 fps
Kinetic Energy: 63.83

 

[Deer30]

Man that is a bunch of speed and KE energy loss when you go down in limb lbs. I didn't realize it was 16 fps. Could you do me a favor and calculate the same specs but with an IBO arrow 310 gr. Thanks Anthony

 

[Guest]

Man that is a bunch of speed and KE energy loss when you go down in limb lbs. I didn't realize it was 16 fps. Could you do me a favor and calculate the same specs but with an IBO arrow 310 gr. Thanks Anthony

Total Arrow Weight: 310
Bow IBO Speed: 320
Adjustment for Draw Length: -20
Adjustment for Draw Weight: -16
Adjustment for Arrow Weight: 13
Adjustment for Weight on String: -7
Calculated Speed: 290 fps
Kinetic Energy: 57.9


You lose 10 fps for every inch shorter than 30" draw too.

 

[Deer30]

Now that is what I am talking about. Have any idea how I can produce an arrow that weighs 310gr that measures 27 .75 with a 100gr. field point? Thanks Anthony. That would also spine right for the type of bow. I am open for suggestions. I would love to see that bow shoot 290.

 

[tobin01]

My guess is your gonna have to shoot an arrow @ 6.5gr per inch to get your arrow where you want it.

 

[rutnstrut74]

Thanks Mike, You are definately the numbers man. I hadn't calculated the KE. :sad: :sad:

 

[liaf]

look at blackhawk vapor jets 4000 (6.3 gpi, good for 55-70lbs)-lancaster archery has them (expensive) $120.00 for a dozen.

 

[Deer30]

look at blackhawk vapor jets 4000 (6.3 gpi, good for 55-70lbs)-lancaster archery has them (expensive) $120.00 for a dozen.

:neutral: :shock:

 

[SMOKEWAGON]

You might wanna check out the Carbon Tech "Cheetah Hunter"400 @ 6.4 gr/". $99.99/doz. MTO from Lancaster's.

 

[GANDEE]

i can't see paying that kind of money for an arrow,thats like the gold tips pro series theres no reason to pay that extra money there regular arrows shoot just as good, :-x