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arrow help

Started by tyee, March 26, 2010, 09:40:00 PM

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tyee

okay here it goes my bow a whippenstick shoots a 400 spine arrow a 2117 with a 125 perfect it also shoots a 2216 perfect both arrows cut to 30. It shoots a 2413 pretty well with 125 at 30" so that is a spine range of .4-.36
That is a good but I would really like to shoot fmj dangerous game 300
so I made 3 up 30" 31" 32.25" put 70grn inserts in them and shot them all with 125 150 175 tips. I can get a bullet hole with the 175 through paper
the other tip weight tear paper poorly . Arrow flight doesnt look good down range. any Ideas?
bezaleel bow works
schafer
howatt

Ground Hunter


Longbow Bowhunter

How do they fly with a broad head attached?

JimB

If the Dangerous Game shafts are .300 deflection,that is quite a jump in spine.When I jump spine from .400 to .340,but not changing shaft length,I need 100+ grs more point weight to get them right.300 spine would obviously take more.Adding 2" shaft length would help.It may be equivalent to 50 or so grs point weight.

I think you are still way too stiff.The calculator would help a lot.I think I would lean toward the 32" shafts,heavy inserts and get some points to try,in the 200-300 grain weights.I would think 300 would be closer than 200.

Just figuring in my head which is scary,if I were going to try to go from .400 to .300,I would start with 200 grs more front end weight,if my shafts stayed the same weight.Adding 2" of shaft length,you may be able to knock 50 grs off that.You can get a much stiffer shaft tuned to the bow but often,you will end up with a much heavier arrow than you anticipated.This may be a good thing or not depending on how heavy an arrow you like.


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