FOC increase

[enewman]

Pushbotton2.


You won't see that big change till you break that 500 gn mark. And the ke won't change a lot but the momentum will keep going up. I've tested this up to 1080 gn arrow.

There Is a guy on archery talk. That has tested this up to 1500 gn I'll see if I can find that.

[enewman]

Then wouldn't that mean there are two different gross weights? Surely the different vanes with the same weight won't affect FOC will it?

Yes something is off just a bit.

[enewman]

Ok go to archery report. Find the articles on momentum and ke. Lots of good info and charts.

[Pushbutton2]

Yes the GW is gross weight.
The 452 number is my heaviest arrow. The lightest was 449 in the XT. I forgot my arrows in the truck last night. I have the weight if each write on a vane

[sambo73]

you know thinking about this again you might want to consider taking a turn out of that bow and ditching the 100's for 125's, just an option.

Thx, ill ck into it

[Pushbutton2]

Pushbotton2.


You won't see that big change till you break that 500 gn mark. And the ke won't change a lot but the momentum will keep going up. I've tested this up to 1080 gn arrow.

There Is a guy on archery talk. That has tested this up to 1500 gn I'll see if I can find that.

Thats like 3+X heavier than mine! I'm not sure my bow would even shoot that arrow.....

[enewman]

Thats like 3+X heavier than mine! I'm not sure my bow would even shoot that arrow.....

You need to do at least once. You will be amassed at how much energy a bow will put into that arrow.

My 1080 gn still shot 187. Fps. I did think I could run down there and catch it

[El General]

Is the only penalty for overspining additional gross weight and therefore lower velocity?

[enewman]

You need to do at least once. You will be amassed at how much energy a bow will put into that arrow.

My 1080 gn still shot 187. Fps. I did think I could run down there and catch it

Holy crap. Siri is not helping with spelling at all. She needs to fix my grammar to

[JimboBurnsy]

Is the only penalty for overspining additional gross weight and therefore lower velocity?

If you have a short draw length and have your bow turned down below about 50 lbs. then you may be able to get so much spine that it's affecting your arrow flight... But I think that the answer is generally "yes"

[Pushbutton2]

FOC increase

El General
There's this chart



We use it when we walk back tune our bows. It shows a stiff spine reaction.

[Pushbutton2]

So.
I think I'd like to build 1 - 1000+ grain arrow. Just because :-)
Is it possible?
Can you all give me some recommendations?
I'd like 20%+ FOC as well :-)

[JimboBurnsy]

So.
I think I'd like to build 1 - 1000+ grain arrow. Just because :-)
Is it possible?
Can you all give me some recommendations?
I'd like 20%+ FOC as well :-)

A 32" Grizzly Stick Momentum U-FOC 175 with a 100 grain insert and a 315 grain point/head should weigh in at around 1100 grains and the FOC should be over 20%.

[Pushbutton2]

Grizzly stick? Is that an arrow?

[hoyt21]

Yes go to alaskabowhunting.com