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Carbon spine confusion

Started by Mark-R, February 24, 2009, 01:08:00 PM

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Mark-R

This touches on other posts that I've read, but I'm still comfused.  The last time I shot trad, carbon didn't exist - at least for arrows.  For compounds, I can talk carbon all day, but I'm bored w/ compounds and coming back to trad.

I believe in heavy arrows, and my 1st thought was to shoot CX 350's or GT 7595's just to get the extra grains per inch and then build from there.  However, by reading other posts that appears to be WAY too stiff.

I draw and have my new longbow tillered 47# @ 29".  I understand adding weight to the front (inserts, points, etc.) to dial in the spine.  Would CX 150's/250's or GT 3555's/5575's be a better way to start?  I'd be happy with 500-700 grains, but concerned about hitting that weight with lighter shafts.

Thanks,
Mark

drewsbow

I would say the 150's or the 3555 would get you in the ball park. Drew
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Onions

Mark,
I shoot a 50lb 'curve with Beman ICS Camo hunters. I add a 3gr. weight tube, and a 150gr. head. Overall weight is 510gr (28.5"long).
I can also shoot 55/75 GT from this bow (normally these are for my 58lb longbow), with a 100gr. insert and a 150gr. head, overall weight is 565gr (28.5"long)
Either the CX 150 or a Beman MFX 400 with 100gr. brass inserts will give you the weight you are looking for.
Hope this helps

dragon rider

I agree with Drew.  The CE150's fly just fine out of a 51@28 Shrew and a 47@28 Stewart with points from 175 to 250 depending on arrow length.

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xtrema312

I am doing this all now.  From what I have found you want to look at the 150, 3555, .500 spine arrows.  Then a lot of weight up front. It is typical for them to run longer than normal length like 2 or 3" out front with even 225 gr. out front so you have more shaft weight.  Also look at some of the trad carbon shafts.  Some are 10 gr. per in. vs. the mid 7 gr. per in. you get with a lot of carbon shafts.  It is not hard to get over 500 gr. arrows.
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wtpops

The bow your going to use is it cut past center? if so 250's 100 grain incerts and high point weight say 200, leave shaft long and cut down too tune, there is nothing wrong with a 29" draw and a 31 1/2" arrow. One thing carbons react fast to cutting and slow to added weight up front (spine changes).
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ifalls_archer

My longbow is 55#@28, I shoot 29 3/16" gold tip 5575's with 100 gr inserts and 250gr tips.  Tuned very well.  Hope this helps.

Brent

Shawn Leonard

Shoot 150 cut to 30"s if ya draw 29"s and use 100 grain brass insert with 125 grain head and if the bow is cut to or past center ya will be darn close! Shawn
Shawn

Mark-R

My shelf is not cut to (or past) center, that's why I wanted to get some info you guys.  My best friends boys shoot CX 150's & 250's out of their yth compounds.  We left them full length for simplicity, so I can probably strip and refletch a couple of those to see what I can build up.

Thanks for everyones input; I think you've got me going in the right direction.

Mark

wtpops

Ya if your not cut to or past center you might want to try the 150s
TGMM Family of the Bow
"OVERTHINKING" The art of creating problems that weren't even there!


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