How do I determine arrow length that I need? I have these new arrows that I fletched and now I need to cut them and put in the inserts. I have an arrow saw and the other things I need to fininsh the arrow but do not know how long to cut my arrows. I have heard that you cut them 1 inch in front of the rest will work but still not sure. Any help appreciated thanks.
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A bad day in the woods is still better than a good day at work.
Spine is affected by draw length, draw weight, tip weight, and arrow length. It's best to figure out what approx. weight tip you'll need with your currect setup to get them near the length you want them. Then, you bareshaft test for the ideal spine. Adjustments are then made by cutting one arrow, a bit at a time, until you have the perfect spine. Then you'll know the length to cut the others.
The best way is to purchase shafts, after figuring out what weight tip you prefer to shoot, while taking the other factors into account. Otherwise, you're automatically stuck with a smaller range of tip weights that may or may not be ideal. We might be able to give you a bit more general guidance on what tip and length will be close if you give us all the variables I mentioned.
If you don't know what your arrow length needs to be, cutting your arrow a little at a time isn't going to help. You should have matched the spine to the arrow tip weight when you purchased the arrows.
A good rule of thumb is, take one of your new arrows and draw your bow until it bottoms out on the cams or can't be drawn any further. Have someone mark your arrow about 1 inch in front of your rest with a marker when you do this (keep your draw fully back, not where you normally anchor). Most people draw their bow back to the wall, then let off a bit, get comfortable with the anchor point, then release the arrow. Typically the end of the arrow is about2 inches beyond your rest at this point, which is about perfect. You just don't want to cut your arrow too short and have it pop off or through your rest if you get excited and over draw your bow, which happens to everyone. That is why you cut your arrows to the max length when you bottom out your bow.
Don't worry so much about arrow spine when cutting your arrows, because that should have been addressed when you bought them, not when you cut them. I hope that makes sense. An inch or two of arrow makes very little difference with carbon arrows as far as loss of speed or increase in speed. You will never notice a difference. Hope that helps.Flinch
Yes I did consider the tip weight to the spine when I bought the arrows. Thats is why I was confused with straightarrows post about all those relations to arrow length. Thanks for clearing that up.
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LH Hoyt Razortec
G5 Optix ME Sight
Ultra Rest LD
Side Mount STS
Beman Team Realtree Arrows
T.R.U. Short-N-Sweet Release
T/C Omega .50
Williams FP-TC Peep Sight
A bad day in the woods is still better than a good day at work.
Location: Balt, MD (orig: J-town,PA) The bowels of Hell!!!
Posts: 2,188
RE: Please Help!
After you cut you can tweak your draw weight to get the arrow more on if you'd like. If you purchased the arrows based on your set-up and tune the rest you'll be good to go. I can adjust my DW by 10 lbs and the arrows are shoot thru paper just as well.
I have a 30" DL and shoot a 28.25" arrow with my QAD rest. If I wanted to I could cut another inch off the arrow but like it where they are now. However, you have to do what is comfortable for you. I have no problem with the broadhead being over the riser to near my hand. And with QAD the arrow isn't going tofall off.
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Yes I did consider the tip weight to the spine when I bought the arrows. Thats is why I was confused with straightarrows post about all those relations to arrow length. Thanks for clearing that up.
The spine ranges given by manufacturers are just approximates. The actual ideal dynamic spine occurs at only one length with any particular bow setup. Simply cutting your arrow so it goes 2" past your rest will not acheive this. However, you're welcome to follow whatever advise you want.
Thanks for the replys, but im going to go with davepjr71's advice and cut my arrows1 1/2'' - 2'' longer than the rest, and tune them after by adjusting dra weight. Dave I also shoot the QAD Ultra Rest.
__________________
LH Hoyt Razortec
G5 Optix ME Sight
Ultra Rest LD
Side Mount STS
Beman Team Realtree Arrows
T.R.U. Short-N-Sweet Release
T/C Omega .50
Williams FP-TC Peep Sight
A bad day in the woods is still better than a good day at work.
If you don't know what your arrow length needs to be, cutting your arrow a little at a time isn't going to help. You should have matched the spine to the arrow tip weight when you purchased the arrows.
A good rule of thumb is, take one of your new arrows and draw your bow until it bottoms out on the cams or can't be drawn any further. Have someone mark your arrow about 1 inch in front of your rest with a marker when you do this (keep your draw fully back, not where you normally anchor). Most people draw their bow back to the wall, then let off a bit, get comfortable with the anchor point, then release the arrow. Typically the end of the arrow is about2 inches beyond your rest at this point, which is about perfect. You just don't want to cut your arrow too short and have it pop off or through your rest if you get excited and over draw your bow, which happens to everyone. That is why you cut your arrows to the max length when you bottom out your bow.
Don't worry so much about arrow spine when cutting your arrows, because that should have been addressed when you bought them, not when you cut them. I hope that makes sense. An inch or two of arrow makes very little difference with carbon arrows as far as loss of speed or increase in speed. You will never notice a difference. Hope that helps.Flinch
I disagree , though you should figure how long your arrow will be and what weight head you will use BEFORE purchacing arrows so that you are on the charts , arrow length has everything to do with spine as straightarrow has said .
Redneck , what arrows did you get , if you cut them 28 inches you will want a shaft that is between 400 and 340 spine , depending on the weight head you use , 340 spine and a 125 grain head is my choice , and our specs are identical . In some cases I can shoot a 400 spine but have to turn the bow down to arround 60 pounds to get broadheads to tune .
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Please Help!
