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in reply to: Shadow Hunter #55799

Very cool!

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in reply to: A Very Educational Film Clip #54861

I was thinking about this while pondering over the old english longbow and the way they used those weapons. They often just lobbed the arrows over into their enemies but the shafts and points are very heavy. I guess that mass is what gave them the momentum to do the job when it came to poking through armor and whatnot.

This post really helped that click in my head.

Thanks for sharing, Doc, I am a big fan of your work.

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in reply to: A Very Educational Film Clip #19510

Was there ever a conclusion about the minimum force needed to propel a 650 grain arrow to consistently penetrate bone?

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in reply to: A Very Educational Film Clip #63969

Very interesting points. Is there ever an amount of FoC that can break bone with a lighter arrow or does that not have as much affect as the 650 grains.

What is the highest FoC arrow anyone has worked out to use for hunting? I see a few 31% arrow builds but not really anything higher than that.

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in reply to: List your FOC arrow information for wood,carbon & aluminum/REFERENCE 4 SELECTING NEW ARROWS #59766

Bow type and Make: Maddog prairie predator

Bow Length: 60″

Bow weight@ 28″: 50 @ 28 (46@26)

Your draw length: 26.5

Arrow type ( material,brand,spine): carbon, Victory vforce 500

Arrow length (throat of nock to tip of shaft): 27.5″

Feathers number and length: 3 x 4″

Insert weight if applicable: 22gn

Adaptor weight if applicable: 125g

Point weight: 235gn 303gn with adaptor

Footing weight if applicable: –

Total arrow weight: 520gn

FOC (as measured by AMO standard..measured throat of knock to end of shaft……tip not included): 30%

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in reply to: Using footings to tune/make a shaft stiffer #28107

Thanks for the replies! It is greatly appreciated.

I have seen an aluminum insert fail but it struck a steel T post while rabbit hunting.

Ripped the threads through the shaft but also broke the threaded post off right behind the vpa small game thumper. Those bigger wider thumpers can put a whole ton of torque on the shaft. I don’t think this would be typical when using a broadhead though, not to mention if one were to actually shoot animals instead of fencing supplies.

Seems like the strongest carbon arrow would use one of those brass insert/adaptor combos and skip the threads all together. I shoot victory shafts and havent found one of those that will fit a 245 inner diameter shaft however.

Hmm I don’t like buying the brass inserts either. I wonder how many grains of lead you could pack into a 125grain adaptor.

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in reply to: Using footings to tune/make a shaft stiffer #47346

I could add some of the weight to the broadhead by upping the adaptor weight. Right now I’m using the 235g grizzly kodiaks with a 75 grain screw in adapter. It would be easiest just to use the brass insert plus I think it will give the arrow better structural integrity than the aluminum inserts.

I do understand your point about the returns on Foc being greater the further you can put the weight to the end of the arrow though. Do you think it’s worth it to get larger amounts of foc even if it means using a weaker insert?

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