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Another 'Bonker problem.....

Fishbonker

Life Member
There is a question at the end.

With the help of Muddy I have been shooting great. Then last Friday I got out my good hunting arrows. 6 had 2 inch Blazers and wraps, 6 had regular Gold Tip vanes, both Blazers and vanes were straigh, no off set or helical. I put 100 grain Muzzy three blades on the shafts with the Blazers. I commenced to shootin the broadheads and blazers. Four hit the target and 2 missed completely. All right of center and all over up and down. Of the two that missed one went under and one went faaar right. I reshot the same combination and with about the same results, 5 on the target and one under. Between the two shots there wasn’t a definable pattern, except right of center.

To be sure I was comparing apples to apples. I numbered the arrows in order to make sure I got the same heads on the same arrows and to diagram each group. I shot another group. This time they were all over the place with one underneath the target. I rested my arm for a few minutes. I reshot and they were all over the place and the same arrow (#2) off the target. Reshot from #6 to #1 to eliminate tired arm as a possibility, all over the place and #2 hit the trolley and bent the crap outa the blades, not to mention the paint job. Arrow #2 was taken outa the mix.

I replaced the Muzzys with the field points, not the best group but much better, my arm was getting tired. Then I put the Muzzys on the GTs with the regular GT vanes. They flew better than the blazers, but still they were all over the place. At least all six stayed on the target in a little tighter pattern, but absolutely no pattern that I could make adjustments to my set up to try and cure. I also used the field points on the regular vane GTs and they flew great. It was getting dark and my arm was shot.

As a final test I put the Muzzys on my “range” or practice arrows. These range arrows have an assortment of fletching, straight feathers, helical feathers, regular vanes and blazers, again, all over the place in no repeating, discernable patterns.

I didn’t have a clue what to do. One day before season and there was no way I was gonna try and kill anything with the way I was shooting. It wouldn’t be fair to the animal, nor to me. I got on the site and read a lot of posts about expandable broadheads. Some hunters here hate’em and some love ‘em. Next step was online catalogs. NAP Spitfires caught my eye, 1.5” cut, no rubber bands, either a trocar tip or a razor tip. But man are they expensive. Twice the price of regular broadheads.

Saturday morning I headed to CR. I hit three sporting goods stores and bought six Spitfires with the trocar tip and three with the razor tip. The reason I bought the razor tips was they were the only ones I cloud find replaceable blades (tips) for. I figured I had a ton of shooting ahead and I better get replacement blades.

When I got home I put the Muzzys back on the GTs with Blazers and had the same problem, put the Muzzys on the GTs with regular vanes, same as Friday. Just to be double extra sure I put the field points back on, great patterns. By the way, I was at 30 yards.

Time to put on the Spitfires. The advertising is true, they fly just like the field points, but I got better groups with the vanes not the blazers. Believe me, I kept track with diagrams of where each arrow hit the target every time I shot. I did end up making a slight “Muddyesque” adjustment to the sight. I moved it just a touch to the left. Now I have the confidence I need that I can ethically take deer.

Some facts: Whisker Biscuit, 100 grain field points, Blazers and regular vanes, “range arrows” were Beaman and Gold Tip with a variety of fletching, 5575s and the “good” arrows were Gold Tip 7595s six with Blazers and six with regular vanes. The sight was a pendulum but it was locked down. Target at 30 yards. My target in absolutely shot. There is more of it in the trash can than the target.

Two questions:

1. What was up with my inability to shoot Muzzys, or better put, fixed three blade broadheads? I had a new string, sight and WB put on after last season. I could understand if I was shooting them in consistent groups, but they were all over the place.

2. I tried to replace the blades in the Spitfires. Followed directions and tried for about two, yup, 2 hours to get one blade in. I ran a feeler gauge down the groove to be sure it was wide enough and felt a bur in the groove. Looks like when they drilled the hole for the screw they went too deep and the bit hit the inside of the grove leaving a bur. I got a very small file (from my fingernail clippers) and filed off the bur, the blades practically fell in. The bur was in all 9 of the groves (three heads, three groves/head). Anybody else have this problem? Is the bur supposed to be there?

Anyway, thanks for reading this novella, any insights welcome. If you need more info I’ll try to clarify any points.

The ‘Bonker
 
I had some similar problems and just decided to shoot Jak-hammers and have never had a problem since and never a wounded deer. Worked for me!
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Call me lazy, but I cant argue with success. one side note: I have been able to get thunderheads to fly reasonably decent
 
i noticed that you were shooting 2 differently spined arrows. 5575 and 7595 should preform differenly out of the same bow.

had you spin tested your arrows with the broadheads on? if the arrow wasn't cut prefectly square, your broadheads won't screw on perfectly straight. field points might not show as much effect from this, but your fixed blades will really show it.

a helical fletch could help your groups as well..possibly

just a couple guesses
 
If it were me, I would take off the whisker biscuit, put on a trophy taker, shoot it through paper, and then try it again. I bet you wouldn't have a problem then
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too much room for human error, when shooting a biscuit. A drop away rest is the best thing I ever bought. I have also seen them turn people who cannot shoot as well, due to form, turn into great shots. Me Included
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I wouldn't be too hasty to ditch the Biscuit....

Teeroy has given you three good things to check/consider: 1) make sure all of your arrows are spined the same 2) make sure your broadheads are spinning true, and 3) try a helical fletching (the added spin doesn help stabilize a fixed blade in flight)
 
i'm a fan of the biscuit, especailly for beginners, or people who don't shoot often in the off season. BUT...any flinch or the slightest movement in the bow arm, in the fraction of a second between hitting the trigger, and the arrow clearing the rest, will cause a problem
 
Let me know if you need some more help Tom, I can meet ya at the range again if need be.
 
Thanks for the offer. I think I'm pretty dialed in with the expandables.

The more I think about it, the more I think about it, and after thinking about it I think some more and now I'm all thought out. But I came to this conclusion, I'm not gonna think about it any more. The thing that still bothers me is if the arrows are not cut square I'd still think they should fly the same every time and #1 would hit the same spot, #2 would hit its same spot etc. As it was, none of the arrows hit any where near the same spot. One time #1 would be high right, next time low left next time middle left etc. I think (and I shouldn't) that it is a combinaion of my style of shooting as well as potential equipment issues. I wanted to point to one thing and change it, but like I said, I don't think it was only one problem. For now I'll stick with the more forgiving expandables and who knows, I may never go back.

Thanks again for everyones input.

The 'Bonker
 
"Makers Mark" whisky is NOT a shooting warm-up sight enhancing beverage. Though it will make you not care where you hit, it will not help you shoot better. Try a few shots... I mean, draw and release cycles with your bow without the Makers Mark and you may notice a change in your groups!
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Tom,
From reading your lengthy post I have come to a conclusion that your broadhead is not flying true. (Which means that you have a wabble from the head in flight)
My hunting partner was having the same issues with his Muzzy's and the issue was the screw on point of the Muzzy's had issues with certain ferrules. Did a lot of swapping.
I finally worked with them enough to get most of them to fly descent and some of them to fly awesome to his liking.

I didnt do the flight test I just did the old spin test

I shoot a 4 blade fixed broad head and I am dead money out at 50 yrds. 1 1/8th cutting diameter on head.
On my practice broadhead (Only target shoot with) I have a straight fletch with 1 degree right offset.
Hunting broadheads I have right helical fletch and they hit in the same spot.

Dont have 4" vanes so cant help you with that comparison.

Your mechanicals will not amplify any problems you have as well as a fixed broadhead. If you just get your broadhead tuned to your arrow shaft your Muzzy's should fly like darts unless your are getting some unrecognizable bow torque of some kind.

If you want some extra spitfires just give me a pm and you will have 6 to your door.
 
Seriously, 100gr Montec G5, there spin tested what can be better, look I got proof of 6 animazls myself and my gf with 1 animal. MONTEC!!!!
 
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