Planing issue


johnf

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I put on a couple practice blades today to see how they would fly. They are American Broadhead sonics. The first shot flew as true as my field tips, but the second paned around and hit about 4" low and 4" left of the first shot. I repeated the shot with nearly the same results, both shots being around 1" from their original hole. I did a spin test on both heads and they spun straight so I switched them. The arrow that planed before did it again, so I put a field tip on it and it flew fine.

Why would a particular arrow do this with a broadhead while another identical arrow not. I put both broadheads on several arrows, but the one is the only one either broadhead planed with. Any idea why?

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Maybe the vanes on one arrow are in a different configuration compared to the blades of the broadhead than those of the other arrows.

Good possiblilty. I use mechanical heads but still have issues like that once in a while.

What I do is number my arrows(with marker on the nock) and find which ones fly good with my broadheads and those are the ones I use for hunting, the rest I use for target shooting.

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Sounds like a plan. Would refletching fix the problem?

Possibly, as long as the fletchings are put on in a different position than they are now.

If you only have one or two arrows that dont fly perfect with broadheads, I dont know if I would bother. Just use those for target shooting only.

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I put on a couple practice blades today to see how they would fly. They are American Broadhead sonics. The first shot flew as true as my field tips, but the second paned around and hit about 4" low and 4" left of the first shot. I repeated the shot with nearly the same results, both shots being around 1" from their original hole. I did a spin test on both heads and they spun straight so I switched them. The arrow that planed before did it again, so I put a field tip on it and it flew fine.

Why would a particular arrow do this with a broadhead while another identical arrow not. I put both broadheads on several arrows, but the one is the only one either broadhead planed with. Any idea why?

The face of the insert is NOT SQUARE.

This can happen for a couple reasons:

1. The insert is slightly off the long axis of the arrow shaft.

(normally happens when the insert is glued in and the face of the arrow shaft is not cut square. This causes the insert to seat at an angle. With field tip not much of a problem-add wings to the front of the arrow Big Problem)

2. The face of the insert is not square with the long axis of the threads within the insert.

(usually not as big of a problem but it becomes one when you seat the broadhead by tightening it again mis-aligns the blades of the broadhead with the long axis of the shaft causing erratic flight)

Both problems above are solved with a G5-ASD

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The face of the insert is NOT SQUARE.

This can happen for a couple reasons:

1. The insert is slightly off the long axis of the arrow shaft.

(normally happens when the insert is glued in and the face of the arrow shaft is not cut square. This causes the insert to seat at an angle. With field tip not much of a problem-add wings to the front of the arrow Big Problem)

2. The face of the insert is not square with the long axis of the threads within the insert.

(usually not as big of a problem but it becomes one when you seat the broadhead by tightening it again mis-aligns the blades of the broadhead with the long axis of the shaft causing erratic flight)

Both problems above are solved with a G5-ASD

Bingo

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Great answer GW, I figured the blade alignment out with my Muzzy's a few years back and the shaft having a burr on it as well. I do all my own arrow cutting so I took care of that problem even before G5 came out with their tool.

The blade thing was easy enough to fix, I just quit using the tool that is provide with every pack of Muzzy's and finger tighten the Trocar tips. I now have very consistant broadhead flight on all of my heads.

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