Why does my new arrow hit 2 inches lower than my old one?
06-08-2004 | 10:08 PM
#1
Thread Starter
Joined: Feb 2003
Posts: 67
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From: lewisburg ohio USA
Why does my new arrow hit 2 inches lower than my old one?
My old arrows are carbon buck-eyes 435grains FOC is 10.3 My new arrows are Easton axis 420grains FOC is 9.3 both are fletched with 5 inch helical and are cut to the same lenghth my rest is a muzzy zero effect. The axis hits the target 2 inches lower than the buck-eye at 20 and 30 yards. this means i will have to move all my pins down for the axis but what i want to know is why would a lighter arrow impact lower than a heavier one????I have spin tested both no wobbles?? does the FOC have anything to do with it??
06-08-2004 | 10:28 PM
#2
Giant Nontypical
Joined: Feb 2003
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From: HENDERSON KY USA
RE: Why does my new arrow hit 2 inches lower than my old one?
DIAMETER.
Chances are very good that the new arrows are a tad bit smaller in diameter,resulting in the lower groups.It might be a good idea to adjust the rest up slightly and your tune might be right back to where it should be but you really need to group tune the new arrows to know for sure.
Chances are very good that the new arrows are a tad bit smaller in diameter,resulting in the lower groups.It might be a good idea to adjust the rest up slightly and your tune might be right back to where it should be but you really need to group tune the new arrows to know for sure.
06-08-2004 | 10:30 PM
#3
Giant Nontypical
Joined: Feb 2003
Posts: 6,634
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From: HENDERSON KY USA
RE: Why does my new arrow hit 2 inches lower than my old one?
Tune might also be something to consider.With 5" helical,there is a chance of fletching contact and if the previous arrows had some contact,that will cause them to shoot high if the contact is hard enough.
06-08-2004 | 11:23 PM
#4
Giant Nontypical
Joined: Feb 2003
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From: Dover, PA USA
RE: Why does my new arrow hit 2 inches lower than my old one?
TFOX is probably right one the first suggestion.......the smaller diameter gives the new arrows a lower launch angle. Won't look like much to the naked eye but when you transfer that difference to 20 or 30 yards and it shows up noticeably.
This is the reason why many times at 20 yards you can get a fat aluminum shaft to group right with a much smaller diameter shaft even though it might be considerably heavier and slower.
This is the reason why many times at 20 yards you can get a fat aluminum shaft to group right with a much smaller diameter shaft even though it might be considerably heavier and slower.
06-09-2004 | 05:19 AM
#6
Nontypical Buck
Joined: Feb 2003
Posts: 3,058
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From: CT, USA
RE: Why does my new arrow hit 2 inches lower than my old one?
ORIGINAL: TFOX
DIAMETER.
Chances are very good that the new arrows are a tad bit smaller in diameter,resulting in the lower groups.It might be a good idea to adjust the rest up slightly and your tune might be right back to where it should be but you really need to group tune the new arrows to know for sure.
DIAMETER.
Chances are very good that the new arrows are a tad bit smaller in diameter,resulting in the lower groups.It might be a good idea to adjust the rest up slightly and your tune might be right back to where it should be but you really need to group tune the new arrows to know for sure.
06-09-2004 | 11:00 AM
#8
Thread Starter
Joined: Feb 2003
Posts: 67
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From: lewisburg ohio USA
RE: Why does my new arrow hit 2 inches lower than my old one?
bobco i don't know the specs on the diameter both are 400's as you know the axis is a bit smaller in diameter though. i'll chec the rest this weekend when i've got time to mess with it if thats not the cause i'll let you guys know and we can go from there i really appreciate eveyones input thanks KOP
