Broadhead Weight to use

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Ian Turner
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Broadhead Weight to use

#1 Post by Ian Turner » Tue Jan 23, 2018 9:49 am

Hi all i also currently shoot recurves 40 mostly a couple 45 and i draw about 28.5" from handle throat arrows are 30.5" to get good broadhead clearance: i am after peoples opinions on what would be the maximium broadhead weight to use before its all too heavy up front and i start top go backwards from a penetration perspective with the velocity and trajectory loss.
I use 5" feathers with right helical on aluminium and carbon arrows.
Goats and foxes being my primary interest at the usual hunting trad bow distances. cheers ian

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TomMcDonald
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Re: Broadhead Weight to use

#2 Post by TomMcDonald » Tue Jan 23, 2018 3:14 pm

Ian,
Do yourself a favour and read Dr Ed Ashby's studies on broadhead weight and design, among many other interesting things related to arrow design.
You can find his studies on Tradgang or other websites.
I wouldn't hesitate to use 300 grains on a 45 pound bow but there are other variables to consider, especially regarding tuning (good arrow flight with broadheads), strength of arrow and broadhead, and broadhead design.
People might say that using a really heavy head on small or thin skinned game is overkill but several times I've hit shoulder or foreleg bone on goats and still been able to get full pass throughs, using 435 grains up front.
There is also evidence that front loading your arrows makes for better flight.
Cheers,
Tom.
Tom

Sometimes the simplest things are the most profound.

www.billygoatbowstrings.com

Ian Turner
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Location: Sydney NSW

Re: Broadhead Weight to use

#3 Post by Ian Turner » Tue Jan 23, 2018 6:09 pm

Hi mate was thinking of going heavier, currently using 150gr but then thought that any much heavier would make for a real bananna trajectory and hence difficult to shoot with ant confidence.
Cheers

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Muz1970
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Re: Broadhead Weight to use

#4 Post by Muz1970 » Tue Jan 23, 2018 9:22 pm

Do some research mate like Tom suggested.

Start with 10 grains per pound and tune your arrow point weight to your bow.

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TomMcDonald
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Re: Broadhead Weight to use

#5 Post by TomMcDonald » Wed Jan 24, 2018 7:43 am

Ian Turner wrote:Hi mate was thinking of going heavier, currently using 150gr but then thought that any much heavier would make for a real bananna trajectory and hence difficult to shoot with ant confidence.
Cheers
As long as you practice enough it doesn't really matter what your arrow's trajectory is.
Go heavier mate, you'll be pleasantly surprised :Bow
Tom

Sometimes the simplest things are the most profound.

www.billygoatbowstrings.com

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Kendaric
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Re: Broadhead Weight to use

#6 Post by Kendaric » Sat Feb 29, 2020 7:06 pm

I tried extreme FOC and very heavy weighted points once.

Arrows flew like a thrown brick.

Trying to counter the trajectory after 10 metres was not conducive to accuracy at all.

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Jim
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Re: Broadhead Weight to use

#7 Post by Jim » Tue Mar 31, 2020 8:18 pm

Ian, I tried making extreme forward of center arrows for a 40# recurve a few years back. From memory I ended up with something like 250 or 300 in the head. Like the concern you raised it made for a very short and steep trajectory. That was ok shooting at the range because I had time to judge the distance and compensate my aim. For hunting, particularly small game, for me it would be unworkable.

I would aim for no more than 200 up front (tusker Aztec is a nice head for small game at about that weight), if you can use some very light carbon shafts to keep the total weight down. Otherwise I’d recommend just aiming for 10gpp with a standard 125 head.

Good luck mate and let us know how you go :)

Jim
"Structural Integrity of the entire arrow system is THE most important factor in terminal arrow performance. When structural integrity fails nothing else about your arrow's design matters."
-Doc Ashby

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