Wood Arrows For My Super Shrew

[Thare1774]

I want to pick up my first set of woodies tomorrow for my super shrew. It is about 54# at my 29" draw and .450 spined carbons shoot best out of it right now with a 92 grain insert and 175 grain points. I like a heavy head so how heavy of a spine do I need to go with woodies? I searched the forum but found most responses directing people to vendors. I work at an archery store and we have some decent poc shafts but most everyone else in the shop shoots strictly compound so I don't have much help with trad stuff. Thanks

[Stumpkiller]

Just a guess, but based on my 57# at 30" draw with 125 gr heads and using 70-75# shafts for that you will need at least a similar spine.  Release and other factors may call for 5# more.

54# plus 10# for 175 gr heads (5# for every 25gr over 125) plus 5 for 29" draw (5# for every inch over 28") = 70#

So 70-75# spine.

Best bet is to get a range of trial shafts or arrows from an outfit like Rose City.  Centershot can lower spine needed as can a smoother than normal release.

[Thare1774]

Thank you so much, really good info that will start me out

[Steve Clandinin]

Tom,For your info,the Griffin you have coming(Hope to god soon!)My draw is right on 27-1/2",and the bow was just shy of 55#.Iwas shooting 60-65# spine POC,total arrow weight 525 gr. arrow length,from nock throat to back of piont is 28" and 160 gr. target piont.They shot like darts,5-1/4" shield RW feathers.
I was also shooting 65-70# Sp. Surewoods Douglas Fir,same length,same feathers same target piont,total arrow weight 620 gr. they flew great.

[NoCams]

Contact "snag" or "Fletcher" on here and get you a test kit made up not only for this bow, but for any bow in the future. My Shrews are 50 and 55 @ 28 and I shoot 60-65 that are cut to 29" and shoot 160 points. All my future arrows will be 65-70 cause my 60-65's almost wound up too short by the time they were stiff enough. A good rule of thumb that was given to me by Ron LaClair himself is 15lbs over what the bow is marked. As the advice given to you above by others..... I would go with 70-75 and build a test kit around that weight, a little under and little over. JMHO.....  

[Ray Lyon]

1) Start at 15# over draw weight as suggested by Ron LaClair
2) Add 5# for 1" over standard draw (standard is 28" draw and 29" BOP arrow)
3) Add 5# for every 25  grains over a standard 125 grain point.  Therefore if you're shooting 175 grains your 50 grains over, so 2x5 equals 10# more in spine.  

This is my method of getting close and I'll usually round down, ie if the calculation says to add 30#, I'd use an 80-85 pound spine (30+54=84)

[the elf]

Start at  15# over draw weight------Over what is marked on bow ?   or 15# over weight at your draw ?

[NoCams]

Draw Weight....

[NoCams]

At your draw....

[WESTBROOK]

Ray's probably right, he's tuned a Shrew or 2.

Eric

[Ray Lyon]

Originally posted by WESTBROOK:
Ray's probably right, he's tuned a Shrew or 2.

Eric

  Yeah, probably more than a couple.

 It's really about starting points though and everyone can have variations in style that may cause them to go up or down a spine group. I can shoot a Easton Axis 600 cut to 29" BOP with 75 grain brass insert and 145 grain head like a lazer beam even though some would say that's 500 size territory. I can get a 500 to fly the same cut at 29.5" BOP, 75 grain brass and 230 grain broadhead from the same 44#@28 inch foam/carbon 56" Super Shrew Classic Hunter. For wood arrows from that bow I shoot 55-60 pound spine shafts cut to 29" BOP and 125 grain heads.