Will I be spined properly?
 

Ok I’m thinking about this arrow setup for next season. GT pro hunters 7595, @ 28” with 125 gr head and 50 gr insert.
They will be shot from an 07 Allegiance, 70# @ 29”.

I think I will be fine, just wanted some other opinions.

RE: Will I be spined properly?
 

Your going to a tad weak even cut to 27". But cut to 27", it should work. A 100gr head might be a better choice according to Ontarget. This was putting in a speed allegience. With you have a smooth allegiece, then a 27" with your insert and head will work.

RE: Will I be spined properly?
 

Thanks!
I do have the smooth mods, and could probably get down to a 27” arrow. I just used 28” cause that’s what my old ones are and I know I have a lot of room to spare.

One thing I’ve noticed from shooting trad gear and I don’t know if those programs account for it, is that 200 grains up front between the head & normal insert, shows weaker than 200 grains up front with a 100 head & 100 insert. I am guessing due to the weighted insert shortening the effective shaft length because it is deeper inside the arrow.

RE: Will I be spined properly?
 

You could always drop a pound or two and shoot at 67-68. That solves a slightly weak spine real quick.

RE: Will I be spined properly?
 

Or you could buy an arrow with a stiffer spine.

RE: Will I be spined properly?
 

So you got alot of experience with spines stiffer than 0.3"?

RE: Will I be spined properly?
 

No, I guess I figured that there must be stiffer arrows. I know that the 7595 is as stiff as GT makes them, but If I can buy a bow with 80# and even 90# of draw weight, there must be arrows to buy for them.

RE: Will I be spined properly?
 

Actually GT does make them in thier 7595 trads, and so does Carbon Tech, just figured, since you replied, you actually tried them.

RE: Will I be spined properly?
 

I haven't shot GT in 3 years. I like CX much better.

RE: Will I be spined properly?
 

Yea, I would suggest if you are a tad weak then drop your weight a few pounds until you tune.

I did just run your setup in OT2 and I have it almost dead perfect as far as spine. You should be very close with that set up.

RE: Will I be spined properly?
 

And it's a whole lot cheaper than new, stiffer arrows. How easy can it get?

RE: Will I be spined properly?
 

Boy, do you have a lot to learn. Try looking at the spine of the "300" Ultralite. Look at the spine of the UL22 series. Maybe the X Cutters or the 30X.

Expedition and XT 7595 is supposedly a 340 spine. They are mostly what you see in shops because that's what shops can sell. That doesn't mean GT doesn't have stiffer shafts.

RE: Will I be spined properly?
 

Alright. Then he can get the stiffer shaft so he can keep his poundage where it's at. It is an option.

RE: Will I be spined properly?
 

Viagra??? :D That might stiffen the shaft!!!!

Ryan,
You got a few fixes for it, I think I'd go with the drop a couple pounds or maybe use a 100gr tip rather than the 125, whichever hits the spine right. I'm sure you'll have it figured out without too much effort and frustration.

RE: Will I be spined properly?
 

Thanks for the help guys, I just wanted to make sure I wasn't out in left field. As long as Iam close, I can drop the # or make any small adjustments needed.

RE: Will I be spined properly?
 

Rybohunter, you dont need new arrows , the 7595 at 28 inches with the specs you gave are actually in the high green area or even slightly high spine according to OT2. They will work excellent for you. Here is what OT2 showed for your setup when I put the numbers in.

RE: Will I be spined properly?
 

I don't have OT2 because I have a mac. I could run it in VMware Fusion which lets me run Windows, but I'm not going to because I don't want viruses. Can you guys run the numbers for me? I cannot see any porpoising in the arrow flight, but that could be because it is going too fast and I have terrible eye sight.

2008 Bowtech 82nd Airborne 73#, 29"DL (335 fps)
Carbon Express Maxima 3D Select 350 (cut to 28")
Allen 100 grain bullet style field point.
4" LW straight feathers.
CX nock
No nock collar
Total arrow mass: 369.5 grains

I do not know what exactly needs to go into this thing, so I gave you everything that I thought you would need. If I missed something, just let me know.
I seriously hope that this comes out as good as his did because I like how consistent these arrows are.
If they are too weak or strong, I would probably try to fix this by changing the length of the shaft and since I am going to be getting new arrows with my Christmas money, I could have them cut to anything from uncut (full length) to 27". If changing the length cannot fix it, I guess I would be willing to change arrows. Let me know what you recommend, but realize that I'd like them to have a consistency of .001, just like the 3D selects. Price doesn't matter.

RE: Will I be spined properly?
 

Where can I get that Ontarget software? Thanks...

RE: Will I be spined properly?
 

Scratch that. I figured it out. This google thing really is neat. lol

RE: Will I be spined properly?
 

Your OT2 run has a 1cam hard. You need to change the bow.

RE: Will I be spined properly?
 

OOPS , missed that. BC , I dont know much about bowtech so would that be considered 2 cam , hard soft or medium then, I am not sure. But I will guarantee he will not be underspined because a couple of friends of mine shoot the same arrow at 70 lbs with a longer draw length and arrow and they have harvested many African and New Zealand animals with the same arrows. But if you can give which type cam it will be called I will rerun the numbers.

RE: Will I be spined properly?
 

I downloaded the OT2 this morning and run the numbers and I should be just fine with the pro hunter 7595's. I forget the exact arrow length, but it was some where around 28 inches.

RE: Will I be spined properly?
 

Don't worry about the cam. Just go into the database and pick the bow. If you own OT, its fairly easy. Any arrow will work with anything. Just on here, we kinda like to pick optimal.

RE: Will I be spined properly?
 

BC, that is what I did and that is what it put in the cam box. I do know that the person that owns OT2 has said that for Hoyt's Cam 1/2 that it will put it in as 1 cam , hard. I am not sure if this isnt why it did this for this bow also , perhaps though. I know about the Hoyt part because I emailed him when I noticed it when I used it for my Hoyt's and that is what he emailed me back. So perhaps that it why it did it on this instance also. But anyway as you said he will be fine with it.