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Author Topic: Is this fast?  (Read 624 times)

Offline Killdeer

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Re: Is this fast?
« Reply #40 on: February 17, 2012, 05:46:00 PM »
OK, doing the math, the full length GT 7595 plus 225 up front comes to 567 grains.  That is still one whacker of an arrow + speed.

KIlldeer
Long, long afterward, in an oak I found the arrow, still unbroke;
And the song, from beginning to end, I found again in the heart of a friend.

~Longfellow

TGMM Family Of The Bow

Offline rraming

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Re: Is this fast?
« Reply #41 on: February 17, 2012, 06:01:00 PM »
Quote
Originally posted by Killdeer:
OK, doing the math, the full length GT 7595 plus 225 up front comes to 567 grains.  That is still one whacker of an arrow + speed.

KIlldeer
Totally agree!

Offline McK

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Re: Is this fast?
« Reply #42 on: February 17, 2012, 06:24:00 PM »
I believe GT shafts come in two lengths, the longer being about 34". At 11.5 gr/in thats 390gr. +225 = 615 plus fletching. If thats the case, then looking at your picture looks like a 31" draw and maybe 60+ lb draw wt.
  Thats the only way I can figure it.
McK

Offline McK

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Re: Is this fast?
« Reply #43 on: February 17, 2012, 06:32:00 PM »
Oops, full length is 32"......There goes my theory.

Offline David Yukon

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Re: Is this fast?
« Reply #44 on: February 17, 2012, 10:29:00 PM »
When and where are you going? Is your b in law lives in the Yukon?
I'm going caribou in august if I don't draw for sheep.
Let me know, It would be fun to at least get together for a meal or so!!

Offline JimB

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Re: Is this fast?
« Reply #45 on: February 18, 2012, 12:14:00 AM »
I calculate 352 grs for the shaft plus 225 up front= 577 grs.12 gr nock,10 gr cap wrap,fletch 10 grs.+.That comes up to 609 grs not including glue.

If actual draw weight is 57#'s,that's 10.68 GPP.My recurves,from my chrony,shoot 180 fps with 10 gpp.My guess is,that would be about 169 fps with a 10.68 gr arrow.

Individual chronys vary and results can be affected by type of light,light angle,batter levels,and distance between screens.I read,that mobile phone transmissions,high voltage lines nearby and a host of other things can affect accuracy.One of the biggest causes of error is the distance between screens being off.I messed that up once and my bows were showing way faster than I expected they would be.Fluorescent lighting is supposed to be very bad.

It's a great looking bow and I would think very efficient with that setup,regardless what the speed is.

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