Sorry tail feather…I have never tried either but I like the rope idea best.

Tailfeather –

What is the target weight you’re shooting for? To date, I’ve stayed away from internal weights (other than inserts), preferring to get as much of my weight forward of the shaft as possible to get as much FOC as I can squeeze out of it.

I too have heard that weight tubes will stiffen the spine, and have also heard some insist that it doesn’t. But I really don’t see how it wouldn’t, based on my admittedly limited understanding.

Started out using Weed Eater .095 line in mine to weight up GTs many years ago… rather a PnA$$.

Now, most Efoc types want the lightest shaft we can find so the weight goes up front!

Some of the guys here I heard thru the grape vine, are trying to see what happens when ALL the added w eight is OUTSIDE and IN FRONT of the shaft! :0 That takes some doing I’m thinking!

I strive for 11-12 GPP of draw weight and they THUMP what they hit…

Good luck!

BTW, I did try many moons ago, those weight tubes… arrows flew sideways…

Keep it up front and you shouldn’t go wrong… sharp broadhead will do a lot more for penetration than just weight!

I’ve been playing with this weight & foc stuff for about a year . Like many I have very limited funds to spend on archery so I experiment and tinker .

Earlier this year I was reading somewhere in this wealth of info here where one fellow put a bullet inside the shaft , right behind the insert . So I did the same thing just to see how things went . Absolutely awesome . Arrows flew perfect and though slightly slower in fps, it arrived at the given target with great authority.

Now , I have spent the whole summer trying toget my bow quiet . Long story short , I inserted a 180 grain , .30 cal. bullet behind the insert in my aluminum shafts . My arrow went from 697.5 to 877.5 grain total weight . FOC went from 20% to 24.8%. FPS went from 152 fps to 138 fps. BUT MY BOW IS NOW QUIET .

Until I can afford different arrows , which will probably be carbon , I plan on sticking with this set up . They are slow but my bow is now quiet .

I’d rather sneek up on ’em quiet and slow and deliver a clean punch to the vitals , than announce my coming and have ’em run off.

I have also removed the 180 grain and taped it to the tip of my broadhead , for testing FOC. The up-front weight is still the same , but the FOC went up from 24.8 to 27plus,,,,something you may want to consider .

Best of hunts to ya

tailfeather wrote: Thanks fellas. i don’t have a certain weight in mind….little over 600 would be great. I’ll go with the addition of the insert weights I’ve got coming and may try the rope (or may not). My arrows have worked fine for me, but a little extra weight would be nice insurance.

If you’re heads are already @ 300gr, then you must be getting close to 600 already? What about just switching to 100gr. inserts instead of 50?

I second What SH said…

Weight tubes will make the arrow fly stiffer. Weight added at the point will make arrows fly weaker, but it will increase your FOC.

What the catalog’s mean is that if you put the arrow on a spine checker after adding the weight tubes, it will read the same. Which is true. But the arrow will be heavier and thus will fly stiffer out of the same weight bow.

But I would consider speed too. If you have arrows around 600 grains or more, that’s already plenty for anything on the east coast. Slowing them down may let that deer sneak out of the way when you shoot…

TF

I made two sets of arrows: one using stiffest spine 340’s with 300 up front, making a 680gr arrow

Another using weaker 400’s with 250 upfront and lightest 3gr per inch tubes, making also a 680gr!( I didn’t plan that, it just happened to come out the same weight! :D)

I didn’t notice any spine difference, and they hit just as hard as the others.

Ps: when using tubes, make sure you squeeze the tubes with pliers every 4-5″ so that the tubes fit really snugly inside the shaft.

I have been playing with carbons for only 2 yrs but did tubes and then spent some money and bought weights and long story short I pulled all the tubes and put weight up front . In my opinion the arrows fly better with weight up front. Good luck

tailfeather wrote: Thanks for all the responses. I think it best just to keep the weight up front and forget about the tubes/rope. Getting down to crunch time and I don’t need to be fooling with anything else!

That’s what I was thinking!