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Upset with 82nd...

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Upset with 82nd...

Old 09-11-2008, 10:54 PM
  #11  
Nontypical Buck
 
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Default RE: Upset with 82nd...

ORIGINAL: Washington Hunter

Forgot to include what I was shooting in the post;

82nd Airborne
60#, 28"
GT Pro 55/75 cut to 27.25"
Broadheads and field points are 100grns.
Both the nock end and insert end as well as the insert were squared with a G5 ASD.
I even went so far as to align my broadheads with my vanes.

[&:]
Just off of the top of my head, that should be pretty good. Not 100% sure, but I'm thinking when I've run numbers on similar set-ups before a 55/75 was right on in the 60# medium draw area, not 100% sure on the tip, you may be able to vary tip weights and improve upon things in that department, but I'm still thinking there's something not right with the rest if you can't get the center-rest right regardless of what you do....
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Old 09-12-2008, 01:11 AM
  #12  
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Default RE: Upset with 82nd...

294fps was the last I saw through the chronograph.

372.3 grain arrows according to our scale.
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Old 09-12-2008, 04:25 AM
  #13  
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Default RE: Upset with 82nd...

I would think a .400 spine is a weak arrow out of that bow. I am willing to bet you need 340's. I have ontarget2 on my other computer. If someone doesn't check it for you first I will after I get home from work this evening.

I can't believe you didn't at least try shooting a stiffer arrow before going through all the trouble of switching rests and screwing with your cams [&:]
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Old 09-12-2008, 05:56 AM
  #14  
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Default RE: Upset with 82nd...

I would try a heavier arrow, if that does not work through on some Rage and don"t worry about it.
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Old 09-12-2008, 06:08 AM
  #15  
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Default RE: Upset with 82nd...

ORIGINAL: buckeye

I would think a .400 spine is a weak arrow out of that bow. I am willing to bet you need 340's. I have ontarget2 on my other computer. If someone doesn't check it for you first I will after I get home from work this evening.

I can't believe you didn't at least try shooting a stiffer arrow before going through all the trouble of switching rests and screwing with your cams [&:]
Or condemning the bow when it may be an arrow issue.


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Old 09-12-2008, 06:11 AM
  #16  
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Default RE: Upset with 82nd...

I would move up to 75-95's.

82nd and Elite GT500 shoot an arrow a bit "harder" than mosst bows. I have .340 FMJ for my ROSS cut to 27. On the Elite I need .300 spine
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Old 09-12-2008, 06:28 AM
  #17  
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Default RE: Upset with 82nd...

I would get the easton guide and bareshaft tune. This method is suppose to tell you if your arrows are underspined or overspined.

Jeff
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Old 09-12-2008, 06:33 AM
  #18  
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Default RE: Upset with 82nd...

Weird. I had the same problem with my 06 Ally:

http://www.huntingnet.com/forum/tm.aspx?m=2959304&mpage=1&key=&#295930 4

I bought an 82nd and it was a breeze to tune. Paper, walk-back, broadhead all good. I loved the Ally but the 82nd is more accurate and 60 lbs is a dream.I am shooting 27.5" mods with 5575 GT Pro Huntersand a Trophy Taker.

TFOX ran the spine it was close tobeing weak - but OK - so I stayed with 5575's because I have more of them. I have some 7595's thatpaper tuned great so Irecommend going to a stiffer (.340) arrow.

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Old 09-12-2008, 07:30 AM
  #19  
 
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Default RE: Upset with 82nd...

I believe that you need a stiffer than typical shaft for the 82nd. I have my 82nd set at 64# and have the 27.5" mods on. I shoot the carbon express 250's and 350's. I figured out that I can barely shoot the 250's with a 100grn tip due to the fact that I have them cut to 25.75" long, so barely make it. With that said in paper tuning, I found the the 250s and 350s tune about the same, but I have the 350s cut to right around 26". I really believe that the 82nds shoot a stiffer spine better.
Good luck.
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Old 09-12-2008, 07:34 AM
  #20  
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Default RE: Upset with 82nd...

According to OT2, your actually stiff. I wouldn't trust OT2 numbers on an 82nd though due to previousexperience.

I would first check the tiller on the bow and make sure you are even there. Then powder test the arrow to just make 100% sure it's getting clearance. Once this is done, I would find a 35/55 and a 75/95 shaft to shoot through it and see what they do.
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