Is my arrow build ok for elk?

[fatlander]

That's exactly what happens when I tune for broadheads, it's way off. That's in part what sent me down this path.

There’s probably two issues going on:

1.) Your arrow is scooting along too fast to tune fixed heads. Yes, there are some people that can get heads to tune at speeds greater than 285, but it’s hard. It also leaves you with pins stacked really tightly and a louder bow. Get your arrow weight up to 515 or so and you’re going to have a much quieter and more forgiving set up.

2.) You’re underspined, and if you aren’t now you will be when you add 100 grains to front of that arrow. Carbon express has the funky numbers that don’t align with real spine deflections. The lower the actual spine number the stiffer the spine (i.e. .250 is stiffer than .350). I think you’d be better served with a .250 with a lot of brass upfront or .300 with a little brass up front.



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[Beendare]

Looking for some input on my arrow set up. It's what I use for whitetail and hoping it will be acceptable for elk. Anything else I need to consider?
Maxima Hunter 350

I shot those Maxima's for 1/2 a year for 3D- they aren't very durable....where I've had Axis arrows go 2 years no problem.

I've seen a bunch of elk shot with arrows right around that 400gr mark- some good and some bad. If you hit anything even close to tough- fuggetit.

I would bump up your arrow weight closer to 500gr....

__________

 

[87TT]

The elk deserve your best and most effective set up. Good luck out there.

 

[Kbhillhunter]

Again, thanks all for the input.

On their website, Carbon Express shows the GPI on the Maxima Hunter 350 at 11.4. My uncut 32.5" arrows, fletched with inserts, are 315 grains which would mean a GPI of 9.7. Am I missing something? Is this a misrepresentation by CE or is my math no good?

It seems like what i need to do is find the correct spine based on the manufacturers specifications for my DW and arrow length, then find an arrow in that spine class that is between 11-12 GPI (assumes a 32" min arrow length and a target finished weight between 450-500 grains w/ 100gr broadhead).

The Gold Tip Hunter XT Xtra seems like it should fit the bill: 300 spine, 10.9 GPI, 32" length should put a finished arrow at around 450g.

 

[fatlander]

Again, thanks all for the input.

On their website, Carbon Express shows the GPI on the Maxima Hunter 350 at 11.4. My uncut 32.5" arrows, fletched with inserts, are 315 grains which would mean a GPI of 9.7. Am I missing something? Is this a misrepresentation by CE or is my math no good?

It seems like what i need to do is find the correct spine based on the manufacturers specifications for my DW and arrow length, then find an arrow in that spine class that is between 11-12 GPI (assumes a 32" min arrow length and a target finished weight between 450-500 grains w/ 100gr broadhead).

The Gold Tip Hunter XT Xtra seems like it should fit the bill: 300 spine, 10.9 GPI, 32" length should put a finished arrow at around 450g.

Standard factory component inserts are usually very light aluminum 10-20 grains. You can get brass or stainless steel in 50 or 75 or 100 grain inserts to help bump up the weight.

For instance try this:

Gold tip hunter XT - .250 spine

32” arrow at 10.6 GPI = 339 grains
3 blazer Vanes = 18 grains
Nock = 12 grains
Point = 100 grains
Brass insert = 50 grains

Total arrow weight = 519 grains

Just remember that any weight you add out front weakens the spine of the arrow, so a .250 with brass is probably a safer bet at your draw length than a .300.

Shoot me a PM and I will try to help you as best I can.


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[Billy Goat]

Again, thanks all for the input.

On their website, Carbon Express shows the GPI on the Maxima Hunter 350 at 11.4. My uncut 32.5" arrows, fletched with inserts, are 315 grains which would mean a GPI of 9.7. Am I missing something? Is this a misrepresentation by CE or is my math no good?

It seems like what i need to do is find the correct spine based on the manufacturers specifications for my DW and arrow length, then find an arrow in that spine class that is between 11-12 GPI (assumes a 32" min arrow length and a target finished weight between 450-500 grains w/ 100gr broadhead).

The Gold Tip Hunter XT Xtra seems like it should fit the bill: 300 spine, 10.9 GPI, 32" length should put a finished arrow at around 450g.

Something is way off there. I looked last night on the CX site and they said 8.9 gpi I believe on the Maxima hunter 350's. It was in my response.

Keep in mind the listed gpi is the bare shaft. No nock, collar, insert or vanes.

 

[Kbhillhunter]

Something is way off there. I looked last night on the CX site and they said 8.9 gpi I believe on the Maxima hunter 350's. It was in my response.

Keep in mind the listed gpi is the bare shaft. No nock, collar, insert or vanes.

i think the 8.9 is bare shaft and 11.4 is fletched, at least thats how i read this chart:

 

[Trial153]

Just me ...if i had that kind of draw lenght i would make the most of it. 550 ish finished weight would be where i would be

 

[Kbhillhunter]

Standard factory component inserts are usually very light aluminum 10-20 grains. You can get brass or stainless steel in 50 or 75 or 100 grain inserts to help bump up the weight.

For instance try this:

Gold tip hunter XT - .250 spine

32” arrow at 10.6 GPI = 339 grains
3 blazer Vanes = 18 grains
Nock = 12 grains
Point = 100 grains
Brass insert = 50 grains

Total arrow weight = 519 grains

Just remember that any weight you add out front weakens the spine of the arrow, so a .250 with brass is probably a safer bet at your draw length than a .300.

Shoot me a PM and I will try to help you as best I can.


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that makes a lot of sense. I had just defaulted to the 300 because that's what GT recommended based on the specs they ask for. I might take you up on that as I get closer to making a final selection. Thanks!

 

[Billy Goat]

i think the 8.9 is bare shaft and 11.4 is fletched, at least thats how i read this chart:

That's kinda odd how they have that chart. I guess that gives a taw uncut. But for every inch you shorten it your only going to loose the 8.9. Not the component weight.

 

[Kbhillhunter]

thanks again for all the great recommendations here. spent a lot time researching this the past few weeks and think i've settled on the Gold Tip Hunter XT 250. With a 50gr insert and 100grain BH total arrow weight should be 522 with FOC right about 10%. With my current bow set up, should put the speed at +/- 270 with 85lbs of KE.

 

[87TT]

125 gr head would bump up the arrow weight and the FOC

 

[Kbhillhunter]

125 gr head would bump up the arrow weight and the FOC

Is a drop in speed from 270 to 260 negligible? My thought was to try and balance weight and speed.

 

[87TT]

I just like a bit more FOC. Maybe bump the draw weight up a bit.

 

[Greenmachine_1]

Shoot the arrow and see how it flies and groups before adding more point weight. Make your decision on how it performs from your bow with you shooting it.

Just my two cents.

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