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Need some fairy dust help.

Lowg08

Lowg08

Well-Known Member
Joined
Oct 30, 2019
Messages
803
Ok. I’m trying to build my boy a max 25 yards set up. So I need you heavy arrow guys help. His draw is 23.5 at 40lbs. So I’m wanting to get him to 500gr. Well here is the other thing. His arrow is 25” long. The only thing I can come up with is a crap ton of weight up front. Trying to run numbers now. Yes I’m a speed guy but I feel heavy at low poundage is more ethical.
 
I have included below a story from Jeremy Johnson's excellent book Can't Lose Bowhunting, pages 98 & 99 dealing with a set up very much like you are talking about building. The story here relates to a lady killing a bull nilgai. She was using a 43# bow, 500 spine arrows with 75 grain brass insert with a total arrow weight of 500 grains. It does not tell her draw length, unfortunately. Based on this, I would think that would be a good general ballpark to start with for this build.
 

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NMSbowhunter said:
I have included below a story from Jeremy Johnson's excellent book Can't Lose Bowhunting, pages 98 & 99 dealing with a set up very much like you are talking about building. The story here relates to a lady killing a bull nilgai. She was using a 43# bow, 500 spine arrows with 75 grain brass insert with a total arrow weight of 500 grains. It does not tell her draw length, unfortunately. Based on this, I would think that would be a good general ballpark to start with for this build.
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Thank you. I had him at 500 with the 500 spine 25” FMJ with AAE hybrid nock and 75 grain insert and a 100gr kudu point. Just seeing if I could get some better advice due to me being a speed guy
 
You can really crank up the FOC by using a carbon shaft with a 200-300 grain point and stock inserts. I don’t know the specs on the fmj. You should check out ranch fairy’s video Project Dik Dik. He is the fairy after all.
 
You're welcome. The setup you describe is very close to what she was running. I do wish it told her draw length, but I would guess it to be 25 to 26 inches going off the other information. Best of luck to you and your son this season. I hope he gets a good one (or more).
 
Lol. I’ve got some Easton axis 400 spine down here and some 200 grain cutthroats
 
Lowg08 said:
Lol. I’ve got some Easton axis 400 spine down here and some 200 grain cutthroats
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If you don't mind possibly sacrificing an arrow it might be an interesting experiment to try and see if it would work. You might have 250 grains in the arrow shaft, a 75 grain insert and a 200 grain point would put you at about 525 grains.
 
NMSbowhunter said:
If you don't mind possibly sacrificing an arrow it might be an interesting experiment to try and see if it would work. You might have 250 grains in the arrow shaft, a 75 grain insert and a 200 grain point would put you at about 525 grains.
Click to expand...
I don’t mind. It’s for my boy. So I’m game for it.
 
Lowg08 said:
Ok. I’m trying to build my boy a max 25 yards set up. So I need you heavy arrow guys help. His draw is 23.5 at 40lbs. So I’m wanting to get him to 500gr. Well here is the other thing. His arrow is 25” long. The only thing I can come up with is a crap ton of weight up front. Trying to run numbers now. Yes I’m a speed guy but I feel heavy at low poundage is more ethical.
Click to expand...
My wife only pulls 45 lbs and her draw is 24”. We went to an archery shop and tried arrows from 400 spine, all the way to 800 spine. What flew best for her was 500 spine cut to 28” with 100 grain insert and 150 grain head. With 4” fletchings it put her total weight at 491 grains. It’s not quite 500 put when we cut the arrows shorter, they were too stiff and for whatever reason, 200 grain points didn’t fly right when bare shafting. There really isn’t a magic formula. Get a couple of different size test arrows with no fletchings, and a broadhead/insert test back. Try different combinations with the arrows at length. Shoot until you find a combination that lands almost perfectly straight. Take note of this spine size and length because you may need it again. Then have the arrows cut down 1” at a time shooting them, until it goes stiff. Once it flies stiff try to go up 25 to 50 grains on the tip weight. If it’s flying right then and your weight is in the ball park, awesome. If it’s back to landing weak, cut down another inch (if your length allows). We always shoot in groups of 3 because one arrow is not a good indicator of arrow flight. Went back and forth and while she had some ok results with 200 grains in front, for whatever reason her 500 spine arrows cut to 28” with 150 grain head and a 100 grain insert just flew perfect.
 
If I were you I’d do something similar to what I did for my wife. Take some of your old 300 or 350 spine arrows and cut them a couple inches beyond the length he needs, that way he can grow just a little with them and the broadhead is plenty far away from his hand at full draw. Get a high quality, heavy 2 blade broadhead. I cannot recommend this particular broadhead here highly enough.

www.3riversarchery.com

Steel Force 2-Blade Screw-In Broadheads 3-pack

Check out the deal on Steel Force 2-Blade Screw-In Broadheads 3-pack at 3Rivers Archery Supply
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They come in a 175grain steel ferrule that’s razor sharp. And they’re super cheap Compared to a lot of broadheads. Once you add a lighted nock and fletchings you’ll be around 450-475 grains. My wife passed through 2 deer and buried up on the other side with a setup like this at 26.5” and 40lb
 
You also may try a slightly stiffer (400-350) spine shaft cut at a longer length (28-30 inches) as a longer shaft act weaker than a shorter one. You can always break the dynamic spine down further with more weight up front to make it act even weaker or cut and square the rear of the shaft to stiffen the dynamic spine.
 
therooster240g said:
Do you mind sharing the bow he is using? How do the fmj fly for him?


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If you take one of your 400 Axis cut to 25 in with your 200 cutthroat ( great broadheads ) and the 85 grain ethics adjustable outsert system with sleeve lighted nock and 4 3” feathers without wrap you can get roughly 540 taw and that would also give you a high FOC compared to the fmjs.


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therooster240g said:
Do you mind sharing the bow he is using? How do the fmj fly for him?


Sent from my iPhone using Tapatalk
Click to expand...
He is shooting a prime nexus 2 40lb limbs. Maxed out 23.5 draw weight.

I have not bought the FMJ yet. I’ve been trying to decide on arrows bow to build to the bow and tune from a bare bow.
 
therooster240g said:
1316040b8624406945d1f57787870ffb.jpg


If you take one of your 400 Axis cut to 25 in with your 200 cutthroat ( great broadheads ) and the 85 grain ethics adjustable outsert system with sleeve lighted nock and 4 3” feathers without wrap you can get roughly 540 taw and that would also give you a high FOC compared to the fmjs.


Sent from my iPhone using Tapatalk
Click to expand...
The axis already have 3 - 3” feathers on them. I’ll take two and have them cut tomorrow
 
Well we were monkeying around at the bow shop we have decided on. Easton axis 400 spine. At 26” With low pro file AAE hydrid four fletch and a 75 gr insert. Broadhead is still undecided. Been looking at 150gr kudu right bevel
 
Lowg08 said:
Well we were monkeying around at the bow shop we have decided on. Easton axis 400 spine. At 26” With low pro file AAE hydrid four fletch and a 75 gr insert. Broadhead is still undecided. Been looking at 150gr kudu right bevel
Click to expand...
Nice. So this combination flies well out of the bow for your son?
 
Not sure yet. We started building them today. Have to refletch and cut and clue and all that jazz. Just a starting point.
 
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