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JoshKeller 01-26-2009 06:30 PM

RE: heavy spined arrows
 
I can say that I tried my 82nd at 70 lbs with a .300 spined arrow, and had to trim down the arrow to 28" and back it down to 68 lbs before I got completely satisfactory arrow flight.

TFOX 01-26-2009 06:34 PM

RE: heavy spined arrows
 


ORIGINAL: JoshKeller

I can say that I tried my 82nd at 70 lbs with a .300 spined arrow, and had to trim down the arrow to 28" and back it down to 68 lbs before I got completely satisfactory arrow flight.

Glad you posted,because it was your bow that I ran through AA and it took exactly what AA said for it to be right with broadheads if my memory is correct.

drockw 01-26-2009 08:17 PM

RE: heavy spined arrows
 

ORIGINAL: FSUBIGMAC

DUDE a 750 gr arrow? Holy SH**. I think the African locals already developed something similar for taking down big game -- its called a spear :D:eek:. Would like to see some speeds of a 70/30 82nd, Monster, or Xforce shooting one of these 700gr. javelin's.
Ive seen it lol! and so has TFOX... At the shop, we have an Xforce GX treestand model. @80#'s it shot a 470gr. arrow at 317fps[&:]@29" of draw. At 70#'s it was still in the high 280-290 range but i forget exactly what it was?

That equals roughly 105#'s of KE[:-]

The same bow/arrow setup with weight tubes in teh arrow shot a 720gr. arrow @ 240ish fps.

Sorry my #'s arent exactly right, but its been a while, and TFOX can vouch for me on this one cuz he saw it!

I took the bow hunting the next day after we figured out all of the speeds/ke etc. Needless to say, i was equipped with 2 3/4" trophy ridge turkey tomahawk bh's. I wish i would have gotten to shoot something lol! It would have been ridiculous!

Derek

TFOX 01-26-2009 08:35 PM

RE: heavy spined arrows
 
I think darren is shooting it at 110 ft/lb ke.


I will be willing to bet that he is underspined and no way could he get fixed blade heads to fly,BUT,I doubt penetration would be an issue.[&:]

BUT,I did see the chrono but I have not checked the actuall poundage or arrow weight.

drockw 01-26-2009 08:46 PM

RE: heavy spined arrows
 
I did double check the draw weight and arrow weight. They were spot on! IT is a true 80# bow[&:].

Its a rhino bow:eek:

Doegirl75 01-29-2009 09:24 PM

RE: heavy spined arrows
 
TFox this thread is pretty interesting since I'm experimenting with ultra heavy arrows myself. I tried to build the arrows based on the recommendations from theAshby reports.In order to achievean FOC of at least 19%, I had to use quite a stiff shaft that could handle all that weight up front. I ended up with 26.5" Axis FMJ 340's with 4" helical feathers, 100grain brass inserts, and 160grain Grizzly BH's with 100gr steel adapters. Total arrow weight 675grains:). It's for my 82nd set at 54# and comes to about 12.5gpp.


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