Don Kelton

Can someone help me understand the problem with a arrow being too stiff?

Don Kelton

I have a 2003 bowtech patriot dulley with a trophy taker drop away rest. I don't understand the problem with the arrow not flexing as it leaves the bow

super_hunt54

Too put it as simply as possible, too stiff and your arrow will veer (usually to the left) and you will have problems tuning for that being it will not be consistent. You want your arrow to absorb and store the energy from your bow. Too light of spine and your arrow will whip erratically and will be pretty much impossible to tune. You need to find that "sweet spot" in the middle of absorption/storage, and control. Also, too light of spine you will run the serious risk of the arrow breaking under launch which you can ask MaTT (a member on this forum) is not a fun thing to experience. A piece of carbon arrow through your hand is not something to grin about.

Don Kelton

my bow is 70 lb with 65% let off, my arrows are .300 spine and 28 1/2" long
I cant get rid of a right tare when I paper tune,
but the shorter my arrow the better my group
Could this be a spine problem

super_hunt54

How far away is your paper tune rig? I paper mine at 3 feet so that I will definitely get the initial "tailing" so that I know where the problem is. Generally a "too stiff" spine will tail left. A right hand tailing generally usually tells me that your rest is kicked out to far to to the left. Yes I know it's a drop away but you still have to center it correctly. ESPECIALLY with a dual cam bow. Also, what vanes/feathers are you using? And what weight head? If you find that you are center tuned well and you really think it's too stiff of a spine, try a heavier weight head. Go to a 125 if you are using a 100. May save you from having to get all new arrows as that can be kinda pricey. But I would just about bet since it is tailing right that your center shot isn't lined up well. Bring it in towards the riser a couple clicks (you don't say how bad the tear is) and go from there. That will more than likely cure your problem. If it doesn't get some 125's to see if that helps.

Nomercy448

For guys shooting compound bows with a release, it's VERY unusual to see any negative consequence for shooting arrows too stiff.

For traditional archery shooters running fingers, the "tailing left" issue can come up. The arrow needs a little flex to be able to absorb the lateral string travel as the string rolls off of the tip of the fingers.

But...

Most target arrows are 100-250 spines, and most target bows are NOT aggressive cams and NOT super high poundage - meaning those arrows are incredibly over spined for the bows shooting them... If that was a problem for accuracy, target shooters wouldn't be using them...

Tim Gilliham, GoldTip's lead tech/customer support and prostaff shooter, will echo that sentiment - I've spent multiple occasions over the last several years on the phone with him discussing their new product lines as they come out (Velocity, Kinetic, etc), if anyone was shooting so well they could realize the negative effect of over-spined arrows in a compound with a release, they wouldn't be asking anyone online about set up questions, because they'd be getting paid a lot of money to shoot arrows at targets.

The only tangible negative consequence is either cost or weight - generally stiffer arrows will weigh more per inch, OR, if you find stiffer shafts that aren't heavier, they tend to cost more. At the end of the day, neither is a huge consequence, and shouldn't really be a driving aspect of your decision making.

For me as a compound bow shooter with caliper releases, I want as stiff of spine as I can find in a reasonable arrow weight. 250's and 300's. If I could get hunter diameter arrows at .150" spines for $8-12/shaft, I'd be shooting those.

Don Kelton

Thank you
Logic tells me that everything you wrote is true.

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