Scale?

[bigrak]

I see where most talk about arrow and broad head weight for example 425 gr. etc.
What type of scale do use? Any one have a link ? Also how do you measure for FOC ?
thanks!

[PSEWOOD]

check E bay .Look under grain scale.Should be under ten dollars.Hope this helps!
http://www.ebay.com/itm/Digital-Scale-1 ... 2eca2f2efd

[agingcrossbower]

Here is a utube video on FOC. http://www.youtube.com/watch?v=T6JU_2uCL9s

[Ont_Excal]

I see where most talk about arrow and broad head weight for example 425 gr. etc.
What type of scale do use? Any one have a link ? Also how do you measure for FOC ?
thanks!

from awshucks
There's an easier way to measure FOC. Measure arrow length and mark the middle, then mark balance point. On 20" arrows, it's 5% per inch, 4.5% on 22". Those are for the diffs in the two marks, btw.

I'm of the opinion that there are really only 3 FOC's, low[8-10%, med[11-15%, and high[16-xx%. Add to that, higher FOC's are good for fixed blade bheads, and can hide a lot of arrow probs.

[Ont_Excal]

I bought an RCBS grain scale for powder measurement.
Low cost, easy to zero out, and doesn't take batteries.

[LongCarbine]

Bow hunter super store has them very cheap . And this is the formula I use , I know there are others out there.
Mark your balance point on arrow ,now measure the distance from your noc to your mark this is "A"
"L" is O.A.L
Foc% = 100x(A-L/2) Divided by L

[munch]

you can also buy cheap scales at harbor freight for about $15 that work fine

[roly]

My scale died last year and I ordered another on
line, It seemed to be pretty good

I got some arrows from Big John that were all
within .5 gn,s of the requested weight.

When I checked them they weren't even close. It has got to be my scale not being as good as I thought

I think you need to buy a weight kit and be able to calibrate the scale or upgrade to a much better scale if you need to be really accurate.

[taz3]

If you have a head shops around, you can usually pic up one for a reasonable price too. I think that's what they call them!

[diesel]

I let Gold Tips web site do all the math for me .
Go to bottom of the page and click on
Calculators
Then fill in the blanks .

http://www.goldtip.com/

[LongCarbine]

I let Gold Tips web site do all the math for me .
Go to bottom of the page and click on
Calculators
Then fill in the blanks .

http://www.goldtip.com/

Great Tip !!!

[bigrak]

Wow!!! you guys are great!!! Thanks!!

[mbc4]

just google foc calculator , and if their is a harbor freight around, they are under $10

[bigrak]

just google foc calculator , and if their is a harbor freight around, they are under $10

You think they are acurate enough?
Thanks.

[Bullzeye]

Its not gun powder your measuring so I do not think you need something dead on accurate that cost more money.