What I've found that in most spine chart, it suggest stiffer spine than what is actually needed for the bow. Specially, the dynamic spine chart proves that. Test kit is the best option, dynamic spine calculator is next. For bareshaft tuning, it’s better to start with an arrow that's an inch longer than preffered arrow length, for center shot bow. For self bows, even longer, 2" at least.

@SaneAsylum

2 жыл бұрын

Probably for liability reasons. Too weak can blow up. Too stiff just won't be as accurate. Many people happily shoot over-spined their whole life.

Very good 👍 Passing this on to my customers Thank you

@3RiversArchery

2 жыл бұрын

Happy to be of help!

I don't understand, what's the dynamic spine calculator on the website showing me if i have a generic recurve bow drawing 50lb at 28", says that it is a 59.1 dynamic spine? The arrow specs i entered in the calculator, which included a 0.3" shaft diameter, amounted to a 400 spine arrow, 457.9gn in weight, shooting at 8GPP, with 15.6% FOC, etc, says that it's a 469.5 dynamic spine? Then there's something that says "these two numbers should be nearly equal, withing 2#". I just don't follow what it's trying to tell me.

@3RiversArchery

Жыл бұрын

If you can email us a screenshot of what you put in the fields would be best. My guess is you selected shaft of "other" and entered 400 in the static spine field. This is mainly for wood arrow spines. Your best bet is to pick a similar related carbon arrow in 400 spine as it translates the static spine over properly.

Carbon arrows: I have little experience with carbon. Is a 350 shaft more stiff than a 500 shaft or is it the other way around?

@jacobhalverson6278

2 жыл бұрын

Yes 350 is much stiffer than a 500 spine. you have it correct the lower the number the stiffer the spine, the higher the number the weaker the spine

@3RiversArchery

2 жыл бұрын

The numbers are the measure of deflection, so the larger the number the more the arrow bends under the weight. So the 350 is a stiffer spine then a 500 spine.

@geneg5870

2 жыл бұрын

@@3RiversArchery thank you very much 👍🏹

@geneg5870

2 жыл бұрын

@@jacobhalverson6278 thank you very much 👍🏹

I've never used carbon arrows before but I've heard stories of carbon splintering and injuring the Bowman hand but ever hear that with aluminum.

45# 27 inch draw shoot 100 tip what spine should i shoot

@3RiversArchery

2 ай бұрын

I would suggest a 600 spine at 29" length. Assuming the 45# is at 27" that is.

Name of errows plaes

@3RiversArchery

9 ай бұрын

The carbon arrows are Traditional Onlys www.3riversarchery.com/traditional-only-fletched-carbon-arrows.html Wood are 3Rivers Hunter Arrows www.3riversarchery.com/3rivers-hunters-wood-arrows.html and aluminum are Easton Gamegetters www.3riversarchery.com/easton-gamegetter-xx75-aluminum-arrows.html