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  #1  
Old 09-13-2020, 09:55 AM
ChadMR82 ChadMR82 is offline
 
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Default Aluminum and low foc

I’m setting up my 50# black widow. I usually shoot lower to mid 40#. In trying to keep my arrow weight at 550-575 grains. It is liking a full length xx75 2018 with 145 grain heads. Only problem is the foc is like 11%. I usually 15-18%. I intend to use this for pigs and my rescheduled elk hunt for next year. Curious what you guys think about this setup and my lower than normal foc.
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  #2  
Old 09-13-2020, 10:58 AM
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Larry Hatfield Larry Hatfield is offline
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Default Re: Aluminum and low foc

The world never worried about foc until Ashby and the internet, yet we killed every animal in America and most in Africa. I think you are where most people over the years were without knowing the term. I would not worry about it.
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  #3  
Old 09-13-2020, 11:51 AM
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Draven O Draven O is offline
 
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Default Re: Aluminum and low foc

The single real problem is accuracy with the #50 when you shoot low #40. The FOC is not an issue unless you have OCD.
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  #4  
Old 09-13-2020, 11:55 AM
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Default Re: Aluminum and low foc

What Mr. Hatfield said. If you achieve a good tune with the arrows you're set.
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  #5  
Old 09-13-2020, 12:27 PM
DJL DJL is offline
 
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Default Re: Aluminum and low foc

my question is . why wouldn't you shoot a high foc. better penetration, better arrow flite, easier tune.
my wife shoots 42 lbs on the fingers nothing less than a 200 grain broadhead. complete pass thru on a 4x4 buck last year . didn't run 50 yds after the shot.
all the Dr. Ashby haters i don't get it??? i'd rather err on the side of heavy arrow and greater foc .
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  #6  
Old 09-13-2020, 01:06 PM
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KPinWI KPinWI is offline
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Default Re: Aluminum and low foc

From Easton Arrow Tuning guide you are within the acceptable range

"Easton recommends an arrow with 10-15% F.O.C. for hunting setups and optimal accuracy"
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  #7  
Old 09-13-2020, 01:57 PM
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Default Re: Aluminum and low foc

Ashby haters??? Don't see that on any post. The facts are plain that you do not need to front load to the max to kill any animal in North America. Whatever suits you is what you should shoot! But keep in mind that nothing makes a bad shot a good one.
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  #8  
Old 09-13-2020, 05:16 PM
Rick Harrelson Rick Harrelson is offline
 
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Default Re: Aluminum and low foc

I hear it from both sides on what the FOC should be. One of the funniest interviews on The Push Podcast was with Scott Antczak, they could not believe how light his hunting arrow is; I knew they were going to be surprised.

Listen for yourself, it is a hoot!

https://thepushpodcast.libsyn.com/ep...-scott-antczak
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  #9  
Old 09-13-2020, 07:50 PM
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Draven O Draven O is offline
 
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Default

Quote:
Originally Posted by DJL View Post
my question is . why wouldn't you shoot a high foc. better penetration, better arrow flite, easier tune.
my wife shoots 42 lbs on the fingers nothing less than a 200 grain broadhead. complete pass thru on a 4x4 buck last year . didn't run 50 yds after the shot.
all the Dr. Ashby haters i don't get it??? i'd rather err on the side of heavy arrow and greater foc .
Problems with understanding? He has an ALUMINIUM arrow in the weight of his choice and he gets less FOC than what he is used to. If he wants more FOC he should change to carbon arrows, otherwise he should trust the arrow he built and his capacity to put it in the right spot.
The difference between what he is used to and what he gets is minimum: 11 instead 14-15 which is under the 19 where Ashby said the penetration is better anyway.

Last edited by Draven O; 09-13-2020 at 08:08 PM.
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  #10  
Old 09-13-2020, 08:14 PM
Carboniac Carboniac is offline
 
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Default Re: Aluminum and low foc

There no one(or essentially no one) against high FOC.

But theres a lot of people who think it just doesnt matter for North American game with most bows..
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  #11  
Old 09-14-2020, 12:54 AM
Dana C Dana C is offline
 
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Default Re: Aluminum and low foc

2018 is a heavy, durable shaft.

You're at 11+gpp and 11% foc. 'Traditionally', 9gpp and 7-10% foc is considered adequate for good flight and penetration. Maybe not the very best but git-er-done adequate. Stop overthinking and go kill stuff ;-)
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  #12  
Old 09-14-2020, 03:27 AM
wstrayer wstrayer is offline
 
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Default Re: Aluminum and low foc

Listen to Larry....
There is a reason that the 125 grain point and broadhead was the standard for so long.
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  #13  
Old 09-14-2020, 08:31 AM
Tom M Tom M is offline
 
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Default Re: Aluminum and low foc

I assume the BH’s are screw in? One way to up the front end weight is use inserts that a threaded in back and put some screw in weights there. On some older inserts I have I ran a 8/32 tap and made the threads. If these are glue on BH’s I would use the glue in BH adapters and add weight to them . The ones I have are hollow and can be filled with lead shot or.... and glue to make weight. I have done this with Nibbs as well. Otherwise it’s off to the BH store for heavier BH’s.
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  #14  
Old 09-14-2020, 05:39 PM
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longbowguy longbowguy is offline
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Default Re: Aluminum and low foc

The issue depends on shaft material. Back when most shafts were wooden 125 grain points, give or take, generally made up into arrows of suitable weights for traditional bows, 10 grains per pound of draw weight, give or take 2 grains. When aluminum shafts came along the situation was about the same and the two materials performed about the same.

Carbon shafts came along and were much lighter for a given spine stiffness. This was fine for compound bows, the arrows just went faster. But traditional bows, especially longbows, can only swing their longer limbs so fast, and very light arrows don't shoot quietly or sweetly, so archers started using much heavier points to bring them up to weight - a good match in components.

But heavy points on aluminum or wooden shafts are generally not a good match, and not necessary, or usually sensible, possibly weird. Weird is not smart, mostly. - lbg
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  #15  
Old Yesterday, 08:01 PM
Mobowhunter Mobowhunter is offline
 
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Default Re: Aluminum and low foc

Just cut 1/2 inch off your arrows and try 175-200gr heads. If you're shooting 25 yrds or less the weight won't be a problem. I'm shooting 30.75" 2018's with 165 gr. heads out of a 40# at 29 1/2 inch Frankenbow with longbow limbs and you can see a perfect pinwheel of feathers going to the target. Have no idea what the FOC is but then again it doesn't matter to me.
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