Wood arrow question

[DJ Hardy]

I'm having a Timberpoint Icarus built and plan to shoot wood

Going to have I cut past center maybe 1/8" or so and draw weight 39#@ my 28" draw length.

Hoping to keep the total weight around or under 400 grains

What spine arrow would I need using a 30" arrow and not sure about point weight

Thanks
Dwight

[Orion]

You might be able to achieve that weight with a 5/16 diameter POC shaft and a 100 grain head. Though you might need to go to a 75 grain head to do it. Assuming a low stretch string and 100 grain point, 50-55# would likely do it, 5# less with a 75 grain head.  Difficult to find 50# plus spines in 5/16 shafts though.  May need to go to 11/32 and then staying under 400 grains will be a problem.  A test kit would be a good idea. Good luck.

[DJ Hardy]

Orion thanks for the reply.

Question
If I had the bow cut to center instead would the help by allowing me to use the weaker spine thus using the 5/16 shaft.

If so what spine would you suggest

Thanks
Dwight

[Zwickey-Fever]

What is your actual draw length? Why so determined to use a 30" inch arrow, unless your draw length is 28 1/2 to 29 inches? A lot of people call their arrow length, their draw length. For me, my arrows are 28 1/16, with my draw length being 27 inches. I started with a 11/32, 29 inch arrow and started shooting. I wood cut little bit off at a time until I achieved the correct arrow spine that I was looking for. Then I fine tuned it with fiddling my brace height.
 It will really hard to find a 5/16 wooden arrow in the weight that you're looking for. But to make sure, I would look up a guy here named Mike Vines, a wooden arrow guru who will know better and be more than willing to point you in the right direction my friend.

[Orion]

DJ:  If memory serves, the Timberpoint has a relatively large pistol grip riser. That's one of the reasons it can be cut beyond center and usually is.  From a resale point of view, I'm guessing most folks would want that feature.

If it were me, I'd stick with your original plan and just build out the side plate if necessary.

Are you amenable to shooting carbons?  Much easier to work up a 400 grain arrow that's stiff enough for your bow with carbons.

Regardless, you're going to be dropping a lot of money on a bow.  Better to make the arrows fit the bow than the other way around, I think.

I misspoke above.  If you go to a 75 grain head, could drop spine 5#, not add 5#.  I'll edit it to correct the statement.  Will still be hard to find in 5/16, but not impossible. It may be available in 5/16 in Doug Fir, (which is usually physically heavier than POC) or Sitka Spruce, which is about the same or lighter than POC.  Won't really know what works until you have the bow in hand and try out some different spined shafts.

[slowbowjoe]

All solid advice above. Deeper cut requires higher spine, and means heavier gpp per shaft. Longer shaft requires higher spine, meaning more weight. I'd think about a 29" arrow BOP, sitka spruce, and as said building out your strike plate to tune if you want the deeper cut.

400 grain arrows, or pretty close, can be done, but I'd be looking at how to shoot lower spine rather than higher. And be willing to go for 11/32; a lot will mean calling around to find the lightest set of shafts in your spine range.

[DJ Hardy]

Guys thanks for the replays
I need some time digest and reply along with getting to my wife's computer so I can reply easier than on this dang phone

Again thanks