carbon arrow setup

[ethan]

I've switched to carbons recently and want to add some weight.  They're barely 500grs. right now but I want to get them up close to 600.  I tried weight tubes but it increased the spine and I couldn't get good arrow flight.  If I add the weights to the front will it effect arrow flight the way weight tubes did?

[R H Clark]

Anything you add to the point end will have the effect of weakening spine.

Might be able to help more if you give some info on your set up.

Bow type?
Draw weight?
Draw length?

[wihill]

I've noticed a few things regarding carbons and traditional bows -

More point weight will cause the arrow to "dive" more at the end limits of it's trajectory, it will also weaken the static spine depending on total weight vs the arrow spine.  In my case, I found that changing arrow spine from a .400 to a .340 resulted in almost double the point weight just to bring the arrow back into the correct spine!

Another thing I noticed was that any kind of inserted material to weight the shaft of the arrow changed it's dynamic spine, effectively making the arrow stiffer at the shot - I had to change my point weight to bring the arrow back around.

Between adding shaft weight vs tip weight, I've always been under the impression that point weight is prefered, which will increase momentum and FOC.  Great for hunting, but so long as I keep the 8gpp on a "light" arrow, I write the combo down, as I find them great for indoor 3D and some target work.

[John3]

I've used 3/16" Poly rope.. Cut to length, melt the ends and use a liberated wire coat hanger to insert in the shaft.  Just under 80 grains on my shafts and has not changed the spine...

[NDTerminator]

I use 29.5" CXTH 4560 with 3-4" vanes, 50 grain brass insert, and 125 grain point.  This comes out to a shade more than 530 grains.  Thats' plenty enough weight to get pass throughs on deer...

Never made much sense to me to use an arrow I had to diddle around with to get the weight I wanted.  If I had to do more than use the 50 grain inserts with the carbons I would just go back to alums.  

29.5" 2117s are not only heavier (570 grains) but shoot more quietly.  I still shoot them now & then..

[Manitoba Stickflinger]

I use CX Heritage 150's cut to 27 1/2 with a 100 gr. brass insert. I then use a 200 grain point, 8" wraps and 4 4" shield feathers. Total weight of just over 600 gr. I shoot a 53# Hybrid at about 27 inches. This set-up bareshafts perfectly.

[ethan]

Thanks for the input guys.  All my bows are 60 @ 28.  The arrows are 55-75 gold tips from sipsey river, 30" long and I'm drawing an honest 28".  Right now I'm shooting one of my recurves.  
One of the main reasons I switched to carbons is aluminum arrows are getting slimmer and slimmer in selection.  I'm pretty happy with the carbons, I just need to experiment with the weight issue.  
Manitoba, a 100gr brass insert would be perfect.  Honestly didn't know they made them that heavy.

[Shawn Leonard]

You should be shhoting those GTs cut to 29.5"s and 225 to 250 grains up front at a minimum. Shawn

[ethan]

Thanks Shawn, if I add the 100gr brass inserts that should get me there.  I was curious how that would effect the way the arrow flies.

[Manitoba Stickflinger]

Three Rivers carries the Brass inserts!