Extreme FOC arrows
 

[align=left]I just got done reading Dr Ashby's "Arrow Lethality Study Update 2005 Part II". [/align][align=left][/align][align=left]This study is about the effect of extreme FOC (>19%) on arrow penetration. He found that, for two arrows with identical weight and the same stylebroadhead, the arrows with extreme FOC penetrated better than normal FOC arrows. [/align][align=left]"The extreme FOC arrows averaged 62% more penetration than the normal FOC arrows."[/align][align=left][/align][align=left]http://www.archery-engineering.co.za/archeryPDFFiles/arrow_leathality.%20part_2.pdf[/align][align=left][/align][align=left]Extreme FOC arrows are supposedto be alot more stable in flight, according to what I've read. I'm thinking of using a stiff spine light carbon arrow cut at 28"and usinga 220grainMuzzyPhantomjust to see how it flies.[/align][align=left][/align][align=left]Here's my thinking:[/align][align=left]CX 400s with Blazers cut to 28"[/align][align=left]220 Grain Muzzy Phantom[/align][align=left]504 grain total weight moving at 265 fps (79 ft-lbs KE)[/align][align=left]21% FOC.[/align][align=left][/align][align=left]This will get me good speed, proper spine, and 21% FOC. My current arrows get me similar weight and speed but are only about 10% FOC. What do you think? What kind of arrow flight could I expect?[/align]

RE: Extreme FOC arrows
 

I'm a fan. Would blazers work best with that setup?

RE: Extreme FOC arrows
 

I don't see why not. I like Blazers because I'm using a whisker biscuit for hunting. They are lighter than regular vanes which will also increase FOC slightly.

RE: Extreme FOC arrows
 

You will gain about 1-2% FOC if you go with 4" Feathers instead.

As some know I am a proponent of high FOC arrows. I have been using them for about 2 years now and love how they fly and especially how hard the hit.

Last years setup was yeilding me an FOC of about 21%

This years setup:
Gold Tip Series 22 7.3gpi @ 29"= 211.7grns
Insert= 30grns
PDP Weight Adapters Behind Insert= 40grns
Nock= 13grns
3 4" Shield Cut Feathers= 9grns
7" Wrap= 12grns
Muzzy Phantoms= 220grns
TOTAL= 535.7grns
FOC= 23.01%

RE: Extreme FOC arrows
 

I would like to do this with my arrows to experiment. They are Easton AXIS ST 500's. Help me out on what to do to get this FOC you speak of. I am just experimenting, but this interests me greatly. Please answer via PM's

Thanks, LT

RE: Extreme FOC arrows
 

Right now I am around 27%

525 Grains
100 Grain Hit Insert
100 Grain Head

RE: Extreme FOC arrows
 

I have some FMJ's setup with 100 grain brass inserts yielding over 21% FOC.

The penetration, flight, grouping, and all around performance of these arrows was nothing short of amazing.

While I don't use them with every setup, they definitely have their place in my arsenal.

Dan

RE: Extreme FOC arrows
 

How?

RE: Extreme FOC arrows
 

200 grains on the end of the arrow helps!!;)

Dan

RE: Extreme FOC arrows
 

Yes, it does! I was hoping to find out what kind of arrow, what length, etc....