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your opinoin

Old 11-06-2002, 03:28 PM
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<font size=6></font id=size6><font color=blue></font id=blue>i have heard THAT IF YOUR BOW IS IN TUNE GOOD TUNE YOU WOULD HAVE NO PROBLE WITH FILD POINTS AND BROADHEADS FLYING THE SAME. I DONT THINK SO I HAVE SEEN A GOOD TUNED BOW SHOOT BROADHEADS 5TO 7 INCHES OR MORE OFF. HAVE ANY OF YOU SEEN THIS TO BE TRUE ALSO.
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Old 11-06-2002, 05:33 PM
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<font color=red></font id=red>some one please answer<img src=icon_smile_sad.gif border=0 align=middle><font color=red>SOME ONE PLEASE ANSWER.</font id=red>
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Old 11-06-2002, 05:40 PM
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It is true...A bow in good tune will throw bh's 5 to 7 inches off. A bow in great tune should not do this. What is more inportant is the size of the group compared to fp's.

How do you know the bow was in good tune???
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Old 11-06-2002, 06:00 PM
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I agree with rack.If you go to NAP or the Easton web site they have some info on &quot;group tuning&quot; your broadheads.If your broadheads and field points are grouping good,just not to the exact same point.Then the bow is slightly out of tune or you are torquing the bow slightly.Ideally two points of the same weight should hit in the same spot.Because the broadheads have wings on them any minor flaw in tuning or your release will make them hit in a different spot.There are plenty of guys who just adjust there sights and go hunting.More than likely if the difference is not that great it wont make a difference on a 20 yd shot.If you want to be assured your bow is tuned to perfection then go the extra step and group tune the broadheds.It's not that difficult.It helps if you have a micro tunable rest.Some of the cheaper rests without individual adjustments can be hard to make small changes on.Good luck,

Billy

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Old 11-07-2002, 03:34 PM
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mez
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This is true. I spent a week on this message board trying to fix this very problem. Broadheads would group fine but hit about seven inches left of my fieldpoints. The bow was tuned twice at two different shops and would shoot bullet holes through paper. My problem was underspined arrows and center shot was off to the right. With the advice I got on here the BH and FP are now hitting in the same holes.
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Old 11-07-2002, 03:36 PM
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i do not believe they do i am at a pro shop a lot and can tune bows just as good as they can. i have seen this to be true on some bows
(not to nock any bow but most was bow tech). i have no problem with this i an a small man. shoot 32.5 draw. i have 2 bows and both will shoot field points and broadheads the same.












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Old 11-08-2002, 08:17 AM
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Sorry to disagree...but, shooting broadheads and field points the same is NOT necessarily the best tune. What you have is an &quot;average&quot; for both. Group size determines the best tune. As pointed out many times on this board, broadheads are usually longer than field points. Even though they weigh the same (say 100 grains) the broadhead being longer changes the spine of the arrow. Now, if you have two arrows of different spine impacting the same you don't have the perfect tune for one or the other, you have an average. Choose which one you want to tune (field points or broadheads) and get the tightest group for that point.

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Old 11-08-2002, 10:24 AM
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Keep in mind when tuning for broadhead groups, that having the correct spine is very important. Remember to adjust draw to match your arrow's spine. Carbon arrows do have have an ideal spine over their complete advertised range. If your center shot is correct and you shoot your field tips at their best draw weight for correct spine and your broadheads at their ideal draw weight, then both should impact very near each other.

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Old 11-08-2002, 10:41 AM
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IMN,

I have to disagree for the most part. Though I do agree that on some setups there can be a compromise of tune (an average as you say) to get both fp's and bh's to impact the same, I think the change in spinebetween the two has a very, very, small role in it. In fact I don't think the longer bh head really effects spine at all. If anything it has a very small effect on FOC, such a small effect that IMO makes no diff at hunting distances. Using field points I can add 25 grns to tip or lengthen my arrow by 1&quot; and see no percievable group tune diff within hunting distances. Carbons have a very broad spine range. It is all in the blades of the fixed head.

I have not come across a set up yet - under 300 fps that I could not get impact closer than 5 to 7 or more inches off at hunting dist(less than 30). Or ever moved group dist of that size closer, with the effect of opening up the group tune of a bh.

I do agree that when talking about an inch or two group diff., with both acheiving very good groups, that bow can be in the best tune for its bh's and to move the groups to get the same impact may indeed be a compromise.

But once you are that close, why not give it a little tweak and try to get them to impact the same. I doupt you will see any diff in your bh group tune, and it will make practicing much easier.

Edited by - Rack-attack on 11/08/2002 11:43:07
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Old 11-08-2002, 04:26 PM
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Perhaps Len will check in on this topic, as he has done in the past.<img src=icon_smile_question.gif border=0 align=middle>

I'm no technician, and I used to think that it couldn't be done.<img src=icon_smile_sad.gif border=0 align=middle>

I really think it depends (like most things) on the bow, the arrows, the shooter, the broadheads, etc.

Right now, I have 3 different brands of ICS carbons that are supposed to be the same spine. Carbon Express 300's, Blackhawk Vapor 4000's, and Quick Strike 59's. The bow was originally tuned for the Carbon Express, and it will shoot field points and broadheads into a nice neat group out to 30-40 yards. The QS's shoot close to this with broadheads, just not as tight a group. The Blackhawks group decently (except for two of them) but the broadheads impact 3-5&quot; left of the field points which group with the CE's. I think if I tuned the bow for the Blackhawks, this could be improved upon, but I'm not inclined to find out since the CE's group better anyway. There are a lot of variables to control, but I think it can be done most of the time, since I, who have limited experience, can seem get fp and bh to group together on most bows I've had in the last 5-6 years.

Avoid the inevitable until it is absolutely unavoidable!
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