Arrow question/help

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ffmedic

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Have a friend I want to get some arrows for. He shoots a Hoyt that's 85% let off with a 75 or 85 grain fixed head. He shoots a release also if that matters. Draw length is around 28 1/2 to 29 1/2. I need good advice on arrow selection for him. Thanks.
 
ffmedic said:
65-70 lbs draw length is about 29"
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exact draw weight and draw length is great to have before making a decision on the best arrow to use . And listen to TNdeerguy , if you give him all the info he will run it in his computer program and tell you which arrow and what length to cut it to get optimal spine , FPS, and KE . I'm at work today so I don't have access to my program .
 
Here are a few basics to help you out. At 29 inch draw pulling about 70# an arrow with a 400-350 spine will work. Spines are figured at full length and since you are going to be cutting some off the spine will get stronger. When you add weight up front it also weakens the spine but with those lighter points it won't be bad. Also remember for total arrow weight, as a minimum, it is highly recommended by most manufacturers to shoot a total arrow weight equalling this - 5 grains x pounds of pull = total arrow weigh ex: 5 x 70 = 350gr. If you get some and they seem to not fly like you like them try heavier points. This is my set up on the light side I'm also a 29" draw @ 70# - gold tip 5575 with 100 grain tips total arrow weight 390 gr. Gets me a 3" group at 65 yards. Remember its only shooting an arrow not rocket science and the same basic rules that have been working for the last 30+ years still work.
 
Grill-n-man said:
Here are a few basics to help you out. At 29 inch draw pulling about 70# an arrow with a 400-350 spine will work. Spines are figured at full length and since you are going to be cutting some off the spine will get stronger. When you add weight up front it also weakens the spine but with those lighter points it won't be bad. Also remember for total arrow weight, as a minimum, it is highly recommended by most manufacturers to shoot a total arrow weight equalling this - 5 grains x pounds of pull = total arrow weigh ex: 5 x 70 = 350gr. If you get some and they seem to not fly like you like them try heavier points. This is my set up on the light side I'm also a 29" draw @ 70# - gold tip 5575 with 100 grain tips total arrow weight 390 gr. Gets me a 3" group at 65 yards. Remember its only shooting an arrow not rocket science and the same basic rules that have been working for the last 30+ years still work.
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Even shooting an 85 grain point a GT 5575 would be under spined for him at 65 lbs . Even on the Gold Tip chart you are under spined by alot also . I haven't got to run it through the computer but I would assume that's what it says as well . Are you shooting a mechanical ? If not , I don't see how your broadheads can fly anywhere close to field points .

Now since he is shooting fixed blade broadheads , arrow selection is very important . Although we don't know the model of the bow , we can still get pretty close . Shooting 65 lbs. at 29.5" a 340 spine in Gold tip will be pretty solid , since he is shooting an 85 grain broadhead he might be just a little stiff but it is better to be just a little stiff than weak . Now if for some reason he goes to 70 lbs and a 100 grain point he needs to be closer to 300 .

Here is the chart Gold Tip recommends going by .
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I did not find this out till late last night the bow is a Hoyt Magnatech xt2000 it's 85% let off AND he shoots an overdraw total arrow length with overdraw is at 27.5"
 
From your info you gave my computer saying around 385 spine.I think a 350 spine would work fine for your friend. I've been shooting Deer Crossing arrows for a year now with good results. Good prices on them too. If I can help anymore don't hesitate to ask...
 

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