Spine help for 'new' bow
05-10-2009, 08:43 AM
#1
Nontypical Buck
Thread Starter
Join Date: Dec 2005
Location: Burke, VA (raised in MD)
Posts: 1,096
Spine help for 'new' bow
I bought a new (used) 2008.5 Elite GT500 - 28.5" - 60 to 70 lbs.
My current arrows are 27" GT pro hunters 7595 with 100 gr insert/100 gr tip, blazers and standard nocks. D-loop and peep.
My question is for the software guys.
For optimal spine, up to what poundage can I shoot these arrows through this bow?
My current arrows are 27" GT pro hunters 7595 with 100 gr insert/100 gr tip, blazers and standard nocks. D-loop and peep.
My question is for the software guys.
For optimal spine, up to what poundage can I shoot these arrows through this bow?
05-10-2009, 05:07 PM
#2
Nontypical Buck
Join Date: Feb 2003
Location: CT, USA
Posts: 3,058
RE: Spine help for 'new' bow
I'm no software guy, but cut that short, at your draw length- I'd say you'd be fine all the way to 70-71 pounds or so.
On the GT500 I had 28.5"" draw, 62 pounds, shafts cut to 27.75"- blazers, 100 gr pt and a heavier than normal insert (Beman ICSH) I was a teeny bit overspined with a ICSH400.
On the GT500 I had 28.5"" draw, 62 pounds, shafts cut to 27.75"- blazers, 100 gr pt and a heavier than normal insert (Beman ICSH) I was a teeny bit overspined with a ICSH400.
05-10-2009, 05:30 PM
#3
Nontypical Buck
Thread Starter
Join Date: Dec 2005
Location: Burke, VA (raised in MD)
Posts: 1,096
RE: Spine help for 'new' bow
Thanks Jeff: sounds promising. The bow is not here yet but I am a little worried about the shafts being too short. The guy that I bought it from siad he was shooting 27" shafts...
05-11-2009, 04:00 AM
#4
Guest
Posts: n/a
RE: Spine help for 'new' bow
Both my programs show you a tad weak for hunting but good for target. Might try 75gr tips. Holy cow, according to both my programs, it says that bow should be kicking out that 463gr arrow at 310fps. Thats some serious power there.
05-11-2009, 05:02 AM
#5
Nontypical Buck
Thread Starter
Join Date: Dec 2005
Location: Burke, VA (raised in MD)
Posts: 1,096
RE: Spine help for 'new' bow
Thanks Bigcountry!
Couple more questions:
Where can I buy this software? So I can do this myself.
I would assume I could also take a couple turns off draw weight if the spine showed weak? I hate to give up my 100 grain broadheads.
My arrows weigh out at 480 grains even so I am not sure where the weight difference comes from. Any idea?
I have never owned an Elite before but I guess I'll be sipping the kool aid when it gets here.
Couple more questions:
Where can I buy this software? So I can do this myself.
I would assume I could also take a couple turns off draw weight if the spine showed weak? I hate to give up my 100 grain broadheads.
My arrows weigh out at 480 grains even so I am not sure where the weight difference comes from. Any idea?
I have never owned an Elite before but I guess I'll be sipping the kool aid when it gets here.
05-11-2009, 05:36 AM
#6
Nontypical Buck
Join Date: Aug 2006
Location: Southern MD
Posts: 2,520
RE: Spine help for 'new' bow
ORIGINAL: kwilson16
I would assume I could also take a couple turns off draw weight if the spine showed weak? I hate to give up my 100 grain broadheads.
I would assume I could also take a couple turns off draw weight if the spine showed weak? I hate to give up my 100 grain broadheads.
05-11-2009, 09:14 AM
#7
Guest
Posts: n/a
RE: Spine help for 'new' bow
ORIGINAL: kwilson16
Thanks Bigcountry!
Couple more questions:
Where can I buy this software? So I can do this myself.
I would assume I could also take a couple turns off draw weight if the spine showed weak? I hate to give up my 100 grain broadheads.
My arrows weigh out at 480 grains even so I am not sure where the weight difference comes from. Any idea?
I have never owned an Elite before but I guess I'll be sipping the kool aid when it gets here.
Thanks Bigcountry!
Couple more questions:
Where can I buy this software? So I can do this myself.
I would assume I could also take a couple turns off draw weight if the spine showed weak? I hate to give up my 100 grain broadheads.
My arrows weigh out at 480 grains even so I am not sure where the weight difference comes from. Any idea?
I have never owned an Elite before but I guess I'll be sipping the kool aid when it gets here.
Before worrying too much, tune it up and see how they shoot. Programs can only get you in the ballpark. if you have to move too far off dead center, then you might need to drop some head wieght.
