100 or 125 grains to get good spine and FOC
03-17-2008 | 07:41 PM
#11
Nontypical Buck
Joined: Jan 2007
Posts: 1,985
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From:
RE: 100 or 125 grains to get good spine and FOC
Yep I think he was trying to say under spined! Ausi has or is inprogress of building me some archery ammo and the FOC is up around 19-20%! He knows what he's doing so I'm trusting him...if they wobble like a fat woman at a buffet I'll cry and just blame it on my poor shooting.
I can already prepare to adjust my sights since I'm shooting stock 340's and some 400 spine with 100 gr field points,but I'm still learning and hoping to select BH's for hunting soon.
I can already prepare to adjust my sights since I'm shooting stock 340's and some 400 spine with 100 gr field points,but I'm still learning and hoping to select BH's for hunting soon.
03-17-2008 | 08:20 PM
#12
Typical Buck
Joined: Feb 2003
Posts: 760
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From: Nebraska
RE: 100 or 125 grains to get good spine and FOC
Ausie-guy is correct that the 5575's are underspined . Also adding 25 grains to your point does change your FOC quite significantly actually ,2.3% more . Here is what OT2 showed and this was just with the 100 grain points so the 125's made the spine even worse Here is a pic
03-18-2008 | 05:16 AM
#14
Giant Nontypical
Joined: Feb 2003
Posts: 6,455
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From: Burleson TX USA
RE: 100 or 125 grains to get good spine and FOC
ORIGINAL: rybohunter
He's not way underspined. He's only one block off.
http://www.goldtip.com/downloads/2006sizing-chart.pdf
That said I'd go with the 100's. You'll be fine.
He's not way underspined. He's only one block off.
http://www.goldtip.com/downloads/2006sizing-chart.pdf
That said I'd go with the 100's. You'll be fine.
I had a gentleman pm me yesterday about his set up 70lb, 27.5" draw and 27" arrow (5575),when I ran his numbers the spine was weak.
I suggest that if the chart say's you need a 5575 (400 spine) arrow go to the next stiffest.
This is one of the reason most people have trouble tuning their bows.
03-18-2008 | 06:15 AM
#15
Joined: Feb 2003
Posts: 2,221
Likes: 0
From: Howard PA USA
RE: 100 or 125 grains to get good spine and FOC
ORIGINAL: Ausie-guy
Those charts are only a ball park figure and IMHO they are totally missleading.
I had a gentleman pm me yesterday about his set up 70lb, 27.5" draw and 27" arrow (5575), when I ran his numbers the spine was weak.
I suggest that if the chart say's you need a 5575 (400 spine) arrow go to the next stiffest.
This is one of the reason most people have trouble tuning their bows.
ORIGINAL: rybohunter
He's not way underspined. He's only one block off.
http://www.goldtip.com/downloads/2006sizing-chart.pdf
That said I'd go with the 100's. You'll be fine.
He's not way underspined. He's only one block off.
http://www.goldtip.com/downloads/2006sizing-chart.pdf
That said I'd go with the 100's. You'll be fine.
I had a gentleman pm me yesterday about his set up 70lb, 27.5" draw and 27" arrow (5575), when I ran his numbers the spine was weak.
I suggest that if the chart say's you need a 5575 (400 spine) arrow go to the next stiffest.
This is one of the reason most people have trouble tuning their bows.
03-18-2008 | 06:27 AM
#17
Thread Starter
Joined: Feb 2007
Posts: 48
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From:
RE: 100 or 125 grains to get good spine and FOC
Alright Thanks guys I guess Im going to have to buy some more arrows.
How can I get some software like that so i can run some numbers before I buy somthing that aint gonna work again, or at least I know it will.
The arrows dont fly that bad, I robbin hooded one on sunday, that was my first time ever.
How can I get some software like that so i can run some numbers before I buy somthing that aint gonna work again, or at least I know it will.
The arrows dont fly that bad, I robbin hooded one on sunday, that was my first time ever.
03-18-2008 | 06:29 AM
#18
Giant Nontypical
Joined: Feb 2003
Posts: 6,455
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From: Burleson TX USA
RE: 100 or 125 grains to get good spine and FOC
Thanks for the PM help AussieGuy!
Why don't the arrow companies include a disclaimer in their charts?
03-18-2008 | 08:11 AM
#19
Nontypical Buck
Joined: Jan 2007
Posts: 1,985
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From:
RE: 100 or 125 grains to get good spine and FOC
This is the only place anybody refers to a sizing program,you go to most bow shops they scan through a chart and sell what they have in a box,if it wasn't for pictures they couldn't sell anything! Here you get practical advice and multiple opinions to help guide you!
03-18-2008 | 09:53 AM
#20
Giant Nontypical
Joined: Feb 2003
Posts: 6,455
Likes: 0
From: Burleson TX USA
RE: 100 or 125 grains to get good spine and FOC
How can I get some software like that so i can run some numbers before I buy somthing that aint gonna work again, or at least I know it will.
http://archersadvantage.com/AdPages/AAIntro.htm