Game Getter II vs XX75
col...@imap2.asu.edu
XX75 shaft is the straightness factor. Are they the same material with
different straigtness or different material with different straightness?
Would someone please let me know. I don't think that .001" is worth the
extra $ if the material is the same.
Thanks for the information.
Don Colter
Arizona State University
Robert Brenson
: I was told that the only difference between the Game Getter II and the
: different straigtness or different material with different straightness?
: Would someone please let me know. I don't think that .001" is worth the
: extra $ if the material is the same.
Don,
I'm not sure about the Gamegetter II, but I know the Gamegetter is softer
than XX75's. I used to use the GG's for hunting and practice, but noticed
they really bent fairly easy. XX75's OTOH are pretty strong and will not
bend as easily.
I think the price ranges for Easton shafts go higher as the grade of
shaft is stronger, so I would think the Gamegetter II's are just softer
than the XX75's.
I could be in error here. I erred once about 40 years ago so anything is
possible...:->
Laszlo Nobi
: I was told that the only difference between the Game Getter II and the
: different straigtness or different material with different straightness?
: Would someone please let me know. I don't think that .001" is worth the
: extra $ if the material is the same.
They are different material. I'm not sure what the Gamegetter II is made of,
but I believe the XX75 is a heat treated, precipitation hardened aluminum
alloy (7075?). I know the GGII is an inferior alloy to the XX75 in terms of
strength. The XX78 has even higher strength than the XX75. The XX78's
can really take a beating. I think the tensile strength of the XX75's is in
the 90,000 psi range, while the XX78 is in the 100,000 psi range. Consult the
Easton Catalog for exact specifications. I have one if you need more info.
E-mail me.
Alloying will not affect spine, though, as they all have virtually the same
modulus of elasticity (Young's Modulus). Relative spine is related only to
geometry of the cross section (given the same modulus and arrow length) and
can be found by calculating the area moment of inertia.
Enough mechanical engineering talk...
Laszlo
Member: Wildlife Legislation Fund of America
National Rifle Association
Colorado Bowhunters Association
Ft. Collins Archery Association
PETA-- People for the Eating of Tasty Animals
: Thanks for the information.
William Gorman
difference between the two arrows was the pattern, plain versus camo, but
can't say that I've done any real research.
Laszlo Nobi
: I was told that the only difference between the Game Getter II and the
: Thanks for the information.
Well, I got the real poop from the 1994-95 Easton catalog. As it turns out, I
was *wrong* about the material difference. The GG, GGII and XX75 are all
7075-T9 Aluminum Alloy (Zinc is the major alloying element). The XX78's are
7178-T9 alloy, which is a different material. I have put together a table
with some of the specs from the catalog. Another big difference is the
sizes that are available for each type. The Superlites (less than 0.015" wall
thickness) and the Ultralites (0.012" wall) are not available in the GG or
GGII. So if you want to shoot the large diameter, thin walled, light arrows
like the 2413, 2314, 2514, 2212, etc., you have to go with the XX75 or XX78.
Here's what I found....enjoy!
Arrow Type
GG GGII XX75 XX78
Alloy 7075-T9 7075-T9 7075-T9 7178-T9
Strength 96,000 96,000 96,000 100,000
(PSI)
Nock taper Full dia. Full Dia. Reduced Dia. Super-Uni
Taper Taper Taper System
Weight +/- 1.25% +/- 1.25% +/- 1% +/- 1%
Tolerance
Straightness 0.006" T.I.R. 0.006" T.I.R. 0.004" T.I.R. 0.003" T.I.R.
Tolerance
T.I.R. = Total indicator reading
Laszlo
Member: Wildlife Legislation Fund of America
National Rifle Association
Colorado Bowhunters Association
Ft. Collins Archery Association
PETA-- People for the Eating of Tasty Animals
: Don Colter
: Arizona State University
James Bridges
> col...@imap2.asu.edu wrote:
<snip>
> Well, I got the real poop from the 1994-95 Easton catalog. As it turns out, I
> was *wrong* about the material difference. The GG, GGII and XX75 are all
> 7075-T9 Aluminum Alloy (Zinc is the major alloying element). The XX78's are
> 7178-T9 alloy, which is a different material. I have put together a table
<snip>
> Arrow Type
>
> GG GGII XX75 XX78
>
> Alloy 7075-T9 7075-T9 7075-T9 7178-T9
>
>
> Strength 96,000 96,000 96,000 100,000
> (PSI)
>
I have a hard time believing this (not that I doubt your facts!). There
must be some difference in strength. I used to shoot (~15 years ago) the
old green GGs that lost their color pretty easily and bent just from
hitting the bale at an angle from poor flight. I went through about four
batches of half-dozen in two or three years. I went rich one day and
bought some XX75's and I'm still using those same arrows today. I've
watched them carom off trees and rocks and be visually straight as before.
The GG's *broke* in those situations. Have they upgraded the GGs in the
last 10 years or so?
-jb
Rob Meredith
tob...@lerc.nasa.gov (James Bridges) wrote:
> I have a hard time believing this (not that I doubt your facts!). There
> must be some difference in strength. I used to shoot (~15 years ago) the
> old green GGs that lost their color pretty easily and bent just from
> hitting the bale at an angle from poor flight. I went through about four
> batches of half-dozen in two or three years. I went rich one day and
> bought some XX75's and I'm still using those same arrows today. I've
> watched them carom off trees and rocks and be visually straight as before.
> The GG's *broke* in those situations. Have they upgraded the GGs in the
> last 10 years or so?
For at least the last three years Easton has published the same strength
ratings for the GGII and the xx75's. So maybe it's your bad luck and
shooting habits (trees make poor backstops :-) ). In contrast to your
story, I have some GGII which I have been shooting for three years and they
are still flawless, they even have the knocks that they origionally came
with! This past summer I had a xx75 break at the insert on the first shot
into a pile of moss and straw! So.........
Just an additional note for people who haven't seen it before. Easton puts
out a catalog (picked mine up at a deer hunting show) which has alot more
information on arrow wt and spine strength etc. than that which is
available from the Easton chart. I highly recommend it to anyone who
hasn't seen it.
As far as just how much difference there really is in shooting the two
types of arrows: maybe one of the target archers could comment on that. It
certainly doesn't matter much for hunting IMHO
later,
Rob
Brent Moss
I second your statements here, jb. My theory is that the finishing/anodizing
process changes the durability of the arrow. The base material might be the
same to start with, but the end products are very different from my experience.
Brent
--
DISCLAIMER: The ews exp ed in is ost a ne, nd do not
ess ily efl ct th vi of my employer.
Laszlo Nobi
I won't argue with you about your experience with the GG's. All I posted is
what Easton advertizes in their catalog. I know the GG's finish seems to wear
off real fast, but supposedly the alloy is the same. I'd gladly FAX you the
page of the catalog if you don't believe me :-)
Maybe they did change the GG's in the past 10 years, I don't know as I've
only been into archery for 4 years now.
Laszlo
Member: Wildlife Legislation Fund of America
National Rifle Association
Colorado Bowhunters Association
Ft. Collins Archery Association
PETA-- People for the Eating of Tasty Animals
: > Well, I got the real poop from the 1994-95 Easton catalog. As it turns out, I
Robert Brenson
: As far as just how much difference there really is in shooting the two
: types of arrows: maybe one of the target archers could comment on that. It
: certainly doesn't matter much for hunting IMHO
: later,
: Rob
Rob,
I used to use the GG for hunting and target shooting, and they seemed to
bend for me very easily too, compared to the XX75's. I also used to have
a system for getting the most for my money, and used the GG for practice,
and used the Eagle shafts for my hunting arrows. Those are much cheaper,
but bend so easily I found it impractical to use them for practice.
I always figured that when I shoot an arrow at a deer, chances are, that
arrow is going to be bent or broken, hopefully from a solid hit on the
deer. So, each time I would take a hunting shot, the arrow was new and
had never been shot before. As long as they were identical, they always
flew the same for me, so it was not big deal to shoot an arrow that had
never been fired before. I am a cheap SOB, huh?(G)
Since I went to the XX75's, I don't worry about using the same arrows for
practice as I do for hunting. They don't seem to bend like the GG's.
Never did use the GGII's though, so maybe they ARE the same as XX75's..
I found the XX75's will break rather than bend. At least for me.. :->
Bob
bbre...@execpc.com
Force10Ten
XX75 Shafts (depending on the model) also have a reduced diameter nock
taper or UNI bushing, which allows the use of a smaller nock or a Super
Nock depending on the model. This is an extra value item, and along with
the expanded size selection and straightness, accounts for the price
differential. The GG2 is an exceptional value if you can live without
these as it has the alloy and strength of the XX75. Hope this helps !
George T.
Easton Van Nuys
California, USA
E-mail: Force...@aol.com
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