Arrow Weight questions

I am currently shooting a Fred Bear Instinct with a 27 inch draw length and set at 70 pound draw weight and was wonder how heavy in grains my arrow shoot be with a 100 grain broadhead to shoot accurately and to prevent poor arrow flight? any help is grately appreciated :)
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BIG R
I would say right around 400 to 420 :thumb
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Yep, that's a good weight range. Some arrows are considerably stiffer than others and usually shoot broadheads better too. Like PSE Radial Weaves.
Mark
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I am planning on shooting 7595 black expedition hunter gold tip arrows and the maximum weight i can get it to on the gold tip build your own arrow link is 390 grains when i really need it to be 400 to 415 grains is there any way to increase the weight of an arrow without setting it off balanced? by the way i am new to archery so i dont know all the much about it yet. any help is grately appreciated! :)
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Try 125 grain tips. Those arrows are heavy enough to handle them. They should balance about 10% forward of center which is about 2.7 inches on your arrows.
Mark
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Alright cool thanks for all the helpful information guys! :thumb
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What is the best or ideal front of center balance on a hunting arrow?
:-k
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They say at least 11% on Gold Tip's site.
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