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Discussion Starter #1
A newbie reading too much!!! I need advice on correct spine for an ultralight arrow. Currently shooting GT Expedition Hunters 5575 30" length..
2" Blazers and 125 gr. tip... 60-70 lb. wgt. bow now set at 65lb. with a 30" draw.
I want to try a lighter arrow set up, such as Ultralight Pro with 100 grn. tips (maybe even 85 grn.). Even considering feathers. I can easily go to a 29" arrow or less (Drop Zone rest...arrow point now at front of riser).
Also are all GT Ultralight arrows the same... just different grades according to straightness???


Thanks...

Scott
 

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Discussion Starter #2
Something Easier!

I guess I should have should have asked something easier... or more interesting...like... Who makes the prettiest bow? Or maybe...Can your bow out shoot a 30-06? These questions always get a lot of input!

Come on now, I don't want to blow something up!

RSH :cocktail: :cocktail: :cocktail:
 

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If i was shooting UL's cut at 29 or 30'' i would go with the .300 spine arrows (wih 85 grain tip). Also same with 100 grain tip (.300 spine) Yes the ultralights are the same as the hunter arrows. Expedition=Ul entrada (.006 straightness), XT hunter =UL(.003 straightness) UL pros=pro hunter (.001 straightness) with the exception that the Ul's are lighter of course. But wait for more imput on this thread to make sure all is accurate.
 

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lyfestyl said:
A newbie reading too much!!! I need advice on correct spine for an ultralight arrow. Currently shooting GT Expedition Hunters 5575 30" length..
2" Blazers and 125 gr. tip... 60-70 lb. wgt. bow now set at 65lb. with a 30" draw.
I want to try a lighter arrow set up, such as Ultralight Pro with 100 grn. tips (maybe even 85 grn.). Even considering feathers. I can easily go to a 29" arrow or less (Drop Zone rest...arrow point now at front of riser).
Also are all GT Ultralight arrows the same... just different grades according to straightness???


Thanks...

Scott
Hello Scott:

This is exactly what archery software does
to help shooters select an arrow combination.

To select an arrow combination that will work well for you
and your bow,
you need the following information.

Bow Brand (e.g., Hoyt, Mathews, Martin or Bowtech)
Bow Model (e.g. Pro Elite, Apex 7, Razor X or Allegiance)
Bow Year (2006 or 2005 or....)

Cam system (Cam-1/2 or Spiral or Binary or Nitrous X)

Percent Letoff = 65% or 75% ot 80%

AMO Draw Length = ?? inches


Need to know if this is primarily a hunting arrow?
or primarily a 3D tournament arrow?
or primarily an indoor spots arrow?

It kinda depends what you want to do with the arrow,
so we can help you decide on the best combination of arrow specifications.


If it's a hunting arrow,
then you want maximum flight stability,
a heavier wall thickness, and generally a slightly stiffer arrow shaft
so that the arrow will be deadly accurate up to 40 yds and less.

If it's a 3D tournament arrow,
then you want the lightest and fastest possible arrow.

If it's an indoor spots arrow,
then most folks want maximum outside diameter for line cutting ability.
 

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Discussion Starter #6
Specs For Software...

Not aware of this software...interested though!

Mathews
Outback
2004 ?
cam OUTB-AAR 65% letoff 30"
pimary interest 3D 90%--hunt 10%

Very accuracy minded and willing to experiment to find what works best, but just learning and wanted to try a light combo????????

Scott
 

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(aka lug nut)
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lyfestyl said:
Not aware of this software...interested though!

Mathews
Outback
2004 ?
cam OUTB-AAR 65% letoff 30"
pimary interest 3D 90%--hunt 10%

Very accuracy minded and willing to experiment to find what works best, but just learning and wanted to try a light combo????????

Scott
Hello Scott:

goto www.pinwheelsoftware
and download the Software for Archers program.

The download is free during the trial period.
Download it on a day that you plan to use it,
because a clock will start.

Every time you open the program,
it gives you a chance to purchase the program.

It's a lot of fun to use,
and you can do hundreds of what-if scenarios.

The GoldTip UL 300 shafts will work best for you
with the 125 grain field tips.

Have the raw shaft length cut to 29.5 inches (not including the nock).

Bump up the draw weight to 70 lbs.

Use 2-inch Blazer vanes with no arrow wrap.

Your estimated velocity will be about 294 fps,
and you will be at 6.139 grains per lb of draw weight.
 

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Discussion Starter #8
Down Loading!

Going to down load that program now...as slow as this computer is the trial period may be up!

Scott
 

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An Ultralight 400 would probably work very well if you cut it to 28.5 inches used a 100 grain or an 85 grain tip. Worse case scenario you knock a couple of pounds off your draw but I don't think you will need to. I shoot UL 400 cut at 28.5 inches, 100 grain tip, 2" blazers, at 65# and its paper tuned perfect.
 
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