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Old 08-13-2008 | 12:29 PM
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BowHuntingFool
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Default RE: Elementary Bow Tuning Question -changing from 125 to 100gr


ORIGINAL: jackflap

I have always shot 125gr broadheads and tuned my bow accordingly. On numerous shots over the years, I have always had complete pass throughs with the exception of one time.

Last year I experiemented with a 100 gr broadhead (RAGE) and while I killed and recovered all three deer shot with the rage, I didn't get complete pass throughs on any of them.

I concluded that the lack of complete pass throughs was due to my lack of KE(61#) as compared to those that were more satisfied with this particular broadhead and touted closer if not over 70#KE.

But it was suggested on here that it could be a tuning issue as well since I switched BH weight.

So with that in mind, I paper tuned my bow for verification with a 125 gr field point. Perfect arrow holes everytime. I then put a 100 gr field point on the same arrow and got a slight tear to the left. (It should be noted that I am a left handed shooter, so I am assuming that it would be equivalent to a right tear for most of you.)

It is not a significant tear, and I would suspect some would consider it close enough to a perfect hole to consider it tuned. However, it is a noticeable difference as compared to the 125gr point.

So what does this tell me? Is it 1)Wrong arrow for the reduced weight(Unerspined/Overspined)? I am shooting carbon arrows.

Or 2)is this to be expected when you alter the weight and FOC of your arrow by 25gr even with the correct arrow relative to the set up and one just simply has to "re-tune" when changing.

Or could it be a combination of both?

I won't re-tune or alter arrow selection until after elk season as I will be using the 125 fixed BH while pursuing them and I am very satisfied as how they are flying, both through paper and 40-50 yards out with a broadhead.

Just wondering what I might do different if I decide to try the 100gr again this year for whitetails.




You could always get your tip weight back up to 125gr or even heavier using weighted inserts! They work excellent!
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