I may be wrong, but I say no. that has nothing to do with the flex of the arrow, it will still flex depending on the stiffness of the spine.

for instance you will have a heavier arrow, a heavier tip but that does not change the spine of the arrow. If too weak i would think it would make it weaker. However i do not know very much.

to increase spine would be to decrease draw weight, meaning shooting less fps making the arrow stiffer. to decrease spine would be to raise draw weight meaning shooting more pounds producing more fps. More smarter folks should chime in and help better then me.

 

Technically you can not increase static spine "stiffness," only dynamic spine or how the shaft reacts to the forces of the shot, and no, adding weight up front will not stiffen the effect, it will weaken it. To stiffen the dynamic spine or reaction flex of the shaft during the shot you need to remove weight up front, cut the shaft shorter, add more weight to the nock end, or lower the draw weight.

Static spine is a measurement of the flex of the spine under certain testing conditions, which is while the shaft is supported between two fixed points [28" apart I think is the industry standard] with a specific amount of weight [I think it's 1.96lb] hanging from the center.

 

Technically you can not increase static spine "stiffness," only dynamic spine or how the shaft reacts to the forces of the shot, and no, adding weight up front will not stiffen the effect, it will weaken it. To stiffen the dynamic spine or reaction flex of the shaft during the shot you need to remove weight up front, cut the shaft shorter, add more weight to the nock end, or lower the draw weight.

Static spine is a measurement of the flex of the spine under certain testing conditions, which is while the shaft is supported between two fixed points [28" apart I think is the industry standard] with a specific amount of weight [I think it's 1.96lb] hanging from the center.

Actually you can "stiffen" the shaft by adding weight up front but it is not done with weighted inserts. It is a little convoluted but if you glue a section of a smaller shaft inside the arrow, say 6" -8" in length. Weight is added and shaft stiffness is also increased
A bit of testing would be involved to find the correct inner shaft lenght to achieve the desired results but it is doable.


GRIM

 

In for this. I've been trying to figure this out without having to cut my arrows.

 

If you add weight to the front it will weaken the spine same with leaving the arrow longer, if you lighten the tip weight or shorten the shaft it will stiffen the arrow


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No you gotta either cut the arrow a bit shorter, take weight OFF the front, or add weight to the back.

Increasing weight to the front will weaken the spine.

 

Think of it this way, if you shook a PVC pipe around with with a bunch of feathers on the end, or the same pipe but with bricks on the end. Heavy objects at the end of the arrow will make the arrow move more, slightly reducing the spin.

 

So many (convoluted) answers to such a simple question.

No. Adding weight to the front of an arrow, will not stiffen it.

Now...what are you trying to achieve?

 

C'mon, you know the simpelest question to answer on AT is how complex the answer to a simple question can be...

 

Adding weight up front weakens.
Removing weight from the front stiffens.

It's a very simple answer.

 

Yep.....effective spine is what they are really talking about. Less bow weight, shorter shaft, lighter points, less leftoff, ATA longer and even string materials can all "effect" how the spine reacts to your particular setup. So doesn't change the spine rating......just how the arrow reacts to the changes that you made.


OP you had it backwards though.....adding point weight reduces the spine and you need a stiffer arrow to allow for that.....all else being equal. Just remember you have a window...….IOW if you are at the high side you might add point weight and be fine or even better off. Or you might be unsafe if you were near the bottom and then added 50 grains up front. We'd need your setup details.....but you get the point (pun intended).

 

Correct me if I'm wrong but a 400 spine arrow is still a 400 spine arrow with 10 pounds on the end or .010 pounds on the end. The spine doesn't change. Only the spines reaction changes depending on length of arrow, poundage of the bow and even draw length.

 

Nobody is asking that question. Everyone seems to be taking this question way too literally.

Let's say he has a 340spined arrow.

Chances are he's getting a weak tear. So he wants to know how changing one variable will impact his arrow.

In this case he needs to stiffen it. You stiffen it by reducing point weight or increasing tail wait.

Very, simple answer to a very simple question.

 

Nope, it weakens it.

To stiffen, remove weight from the front, add weight to the back or cut arrows shorter.

 

So glad I'm a newbie and don't know much yet. My first 6 arrows I ordered look like a fish up and down in the water.
Getting good at hitting the bulls eye. Second 6 I bought shoot so straight I can't see em in the target sometimes. Can't hit the bulls eye either. Now what?

 

So, popsie. Some arrows shoot good. Some arrows don't shoot good.
My first six where about this long. The second dozen were about that long. Some arrows work good with this bow.
Other arrows work good with that bow. So, what gives? Some arrows hit the bullseye so good, can see em. Other arrows so bad, they miss the whole target. You know. At this distance, they look like this outta that bow. Then, at that distance, they look like that outta this bow.

GO figure.

So, now what? Well a little this and a little of that, will get you here and might get you there.

 

If you are shooting 125 grain broadheads, for instance, try 100's. That will make it stiffer. Just an example explaining weight difference.