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Main Boards => PowWow => Topic started by: NBK on July 22, 2013, 10:52:00 AM

Title: Carbon spine for 51# longbow?
Post by: NBK on July 22, 2013, 10:52:00 AM
I have a new longbow shipping today and was going to pick up some more arrows for it.  Arrows will be the Beman ICS bowhunters.  Bow is cut to center, 51# @ 28 and I draw a hair over 28.  I've always shot 400 spine with 300-320 up front, but I'm looking to back down to 200gr. up front.  I'm guessing the 500 spine would work, but looking for some real world reassurance from you all.  Thanks.
Title: Re: Carbon spine for 51# longbow?
Post by: Roadkill on July 22, 2013, 10:56:00 AM
several of my longbows shoot between 50 and 54 pounds at my 25 in draw,  The GT 35-55 work well for m
Title: Re: Carbon spine for 51# longbow?
Post by: damascusdave on July 22, 2013, 11:19:00 AM
I would not buy anything until I tried the 400's

DDave
Title: Re: Carbon spine for 51# longbow?
Post by: D. Key on July 22, 2013, 11:27:00 AM
I shoot a bit less poundage but CE-150's cut to 29" with about 200 grains up front work great for me.  Best of luck.
Title: Re: Carbon spine for 51# longbow?
Post by: Cryogenic on July 22, 2013, 12:19:00 PM
I have a 51# 3-piece that shoots well with Carbon Express Heritage 90's (.530 spine I think) with 125gr up front.  

They are a little light for some folks, I'm sure, but they are fast, quiet, and accurate.
Title: Re: Carbon spine for 51# longbow?
Post by: Echo62 on July 22, 2013, 12:23:00 PM
What length arrow are you going to be shooting? If you're @ 30" or less the 500 would problably work. Any longer than that might be cutting it pretty close.
Title: Re: Carbon spine for 51# longbow?
Post by: NBK on July 22, 2013, 12:35:00 PM
Echo, about 30".  I can't go below 29, but don't want to leave them full length either.  I've done that with some overspined carbons and didn't like how they rode in the bowquiver on some shorter bows.
Title: Re: Carbon spine for 51# longbow?
Post by: MnFn on July 22, 2013, 12:40:00 PM
Second d.Key choice. My 51# Shrew CH liked CE150's with a STOS 160 + brass insert for a little over 200 grn. 28.75" length.
Title: Re: Carbon spine for 51# longbow?
Post by: Bonebuster on July 22, 2013, 12:49:00 PM
Just leave your arrows full length to start with and see what happens.

Even a .500 spine carbon is stiff when it`s short.

Several bows at my house in the 50 lb range shooting full length Gold Tip 35-55, and ICS Bowhunters in .500....perfect tears thru paper with 175 grain heads and total weights right around 500 grains.
Title: Re: Carbon spine for 51# longbow?
Post by: RC on July 22, 2013, 01:47:00 PM
35/55 will probably be good.
Title: Re: Carbon spine for 51# longbow?
Post by: TxAg on July 22, 2013, 03:10:00 PM
What kind of string are you shooting? Strand count?
Title: Re: Carbon spine for 51# longbow?
Post by: NBK on July 22, 2013, 03:19:00 PM
Ordering an SBD 8-strand.
Title: Re: Carbon spine for 51# longbow?
Post by: tzolk on July 22, 2013, 03:28:00 PM
Mike, what you getting?

30-31" 5575 with 200's or shorter 3555's
Title: Re: Carbon spine for 51# longbow?
Post by: Biathlonman on July 22, 2013, 03:33:00 PM
Definitely. 400

New longbow mean you'll be sending mine back?   Lol
Title: Re: Carbon spine for 51# longbow?
Post by: NBK on July 22, 2013, 03:34:00 PM
Todd, leaning towards the 35/55's.  Got to shoot a few 500's from my 50# whip that had 150gr. up front and fletched shafts flew and grouped great.  Overall they seemed more consistent than my 400's.  Couldn't bareshaft, (not my arrows!) so I thought I'd see what the gang here recommends.
Title: Re: Carbon spine for 51# longbow?
Post by: on July 22, 2013, 07:20:00 PM
I shoot 50# at my DL and use nearly full length GT 55/75's. GT says they are supposed to be .400 spine but the spine tester says they are stiffer, like .360-.380. I have 250gr up front. If I was to go any lighter on front end weight I am pretty sure I would have to go to a lighter spined shaft.

Bisch
Title: Re: Carbon spine for 51# longbow?
Post by: Tajue17 on July 22, 2013, 07:23:00 PM
my opinion is if its a soft longbow I say Heritage 90's with stock insert and 200gr point,, my 48# St Charles thunderbird & 53# Baraga both bare shaft tune this 29" arrow perfect.... if its a hard shooting longbow then  bump to the 150's cut to 29 1/2 with 100grain insert and 125grain point and start there,, you might have to go up or down on the brace from here while listening and feeling the bow to fine tune.

can't comment on anything else,  I only use heritage shafts.
Title: Re: Carbon spine for 51# longbow?
Post by: nineworlds9 on July 22, 2013, 07:53:00 PM
+1 on .500 spine!
Title: Re: Carbon spine for 51# longbow?
Post by: 1screagle on July 22, 2013, 07:56:00 PM
Mike,

I love the Heritage 150's for that weight bow. But if you want heavy arrows the 250's cut to the length you want will probably need at least 250 gr. up front. Should get you into the mid 600's of total weight.
Title: Re: Carbon spine for 51# longbow?
Post by: NBK on July 22, 2013, 11:54:00 PM
Thanks for the input.  I ordered some Beman ICS hunter 500 spine.  If I have to I will drop some point weight, (been itching to use the deltas anyway!).
Title: Re: Carbon spine for 51# longbow?
Post by: Friend on July 23, 2013, 08:12:00 AM
My estimation is that an ICS500 Bowhunter at 30"s w/200 gn point will be close based on the information provided.
Title: Re: Carbon spine for 51# longbow?
Post by: NBK on July 30, 2013, 12:00:00 AM
Looks like Friend knows a thing or two...
Shot the .500 31" long with 200 gr. point standard insert and arrow flies straight out to 20 yards.  I will fletch a couple up at this length and try a paper tune.  Then add my big snuffers, then sit and twiddle my thumbs some more waiting for September.  Thanks for the input guys.
Title: Re: Carbon spine for 51# longbow?
Post by: 58WINTERS on July 30, 2013, 01:06:00 AM
35/55 200-250 up front 29 BOP  50 @ 28 HH drawn to 27-1/2 or Liberty string follow Classic 52@27
58
Title: Re: Carbon spine for 51# longbow?
Post by: Fanto on July 30, 2013, 03:06:00 AM
my experience is that in carbon, about 100gr - 150 gr of point weight accounts for the change from .500 to .400

however, i shoot 30" .500s (3555s) with only 120 up front, from a cut 1/8 before centre longbow.

I would start with the .400s, leave them an inch or two longer than you had previosly.

I wouldnt be surprised if your current setup is a tad "weak" spined for your bow. my arrows are 15lbs "weak" according to Stu's calculator and they paper tune into bullet holes

cheers.
Title: Re: Carbon spine for 51# longbow?
Post by: tj69 on July 30, 2013, 04:38:00 AM
30-31"lenght 340 shaft with a heavy point.
with a 125gn point I would try a 30-31" 400 shaft
Play around with the lenght a bit and you should get it working well.
imho
Title: Re: Carbon spine for 51# longbow?
Post by: Possum Head on July 30, 2013, 06:50:00 PM
500 will be your best choice.
Title: Re: Carbon spine for 51# longbow?
Post by: JamesKerr on July 30, 2013, 06:59:00 PM
500's
Title: Re: Carbon spine for 51# longbow?
Post by: JDunlap on July 30, 2013, 07:04:00 PM
I shoot 200 grain heads w/ approx 20grain inserts & my 500's are a little too weak for my 56 and 54 recurves that I pull about 29" -- so about 57 and 59. My guess is 500's would be perfect for your set up.
Title: Re: Carbon spine for 51# longbow?
Post by: NBK on July 30, 2013, 07:27:00 PM
QuoteOriginally posted by NBK:
Looks like Friend knows a thing or two...
Shot the .500 31" long with 200 gr. point standard insert and arrow flies straight out to 20 yards.  I will fletch a couple up at this length and try a paper tune.  Then add my big snuffers, then sit and twiddle my thumbs some more waiting for September.  Thanks for the input guys.
Yep.  The 500's work well.
Realized that I've been over spines most of the time.
Title: Re: Carbon spine for 51# longbow?
Post by: Shawn Leonard on July 30, 2013, 07:28:00 PM
400's will be stiff unless you add a lot of point weight. 29.5" .500 spine will be fine and just play with point weight. I am sure you will end up with a minimum of 175 grains to a max of near 250 grains depending on the bow. Really hard to tell though without what bow it is. I mean a straight limb Hill style bow, you may need 275 grains or more. More on the bow is really needed! Shawn