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Author Topic: Bow weight  (Read 3160 times)

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Offline bow101

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Bow weight
« on: November 17, 2014, 07:36:18 pm »
I'am trying to figure out exactly the draw weight without going out and spending money.  I think my bathroom scale is accurate but any way.  If my bow is pulling 30# @ 22"  about what would it be around 28"  .. What is the average weight increase for every inch.   Is it 3-5#........ ::)
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Offline Springbuck

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Re: Bow weight
« Reply #1 on: November 17, 2014, 07:39:27 pm »
Is it a finished bow?  Bcause if not, it will change things.  Check your scale with something you know the weight of, such as two gallons of milk.  Then if it is close, fill a bucket with water or rocks to whatever weight you want, hook the string on the bucket and lift the bow handle.
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Offline Pat B

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Re: Bow weight
« Reply #2 on: November 17, 2014, 07:55:22 pm »
Generally 3# per inch but that is not cut in stone.
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Offline bow101

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Re: Bow weight
« Reply #3 on: November 17, 2014, 08:05:15 pm »
Quote from: Springbuck on November 17, 2014, 07:39:27 pm
Is it a finished bow?  Bcause if not, it will change things.  Check your scale with something you know the weight of, such as two gallons of milk.  Then if it is close, fill a bucket with water or rocks to whatever weight you want, hook the string on the bucket and lift the bow handle.

Its been done for the last 2 months.  I calibrated the scale with me on it @ 190#. Dry and clean.   ;D  The bow lifted the 27# dumbell at 22".........

Quote from: Pat B on November 17, 2014, 07:55:22 pm
Generally 3# per inch but that is not cut in stone.

I have to get back to you on that one.  I thought 3# per inch is a little on the low side especially after getting to full draw.  When I do it on the scale I'm getting about 56# @ 28"
« Last Edit: November 17, 2014, 08:34:25 pm by bow101 »
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Offline turtle

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Re: Bow weight
« Reply #4 on: November 17, 2014, 08:33:42 pm »
Stand a board on end on your scale. Place handle of bow on end of board and push the string down to the full draw mark you put on the board. Read the scale and then subtract the weigjt of the bow and board.
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Steve Bennett

Offline Tyke

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Re: Bow weight
« Reply #5 on: November 17, 2014, 08:39:30 pm »
Liquids weigh 8lbs a gallon
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Offline Jim Davis

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Re: Bow weight
« Reply #6 on: November 17, 2014, 09:41:18 pm »
Quote from: Tyke on November 17, 2014, 08:39:30 pm
Liquids weigh 8lbs a gallon

WATER weighs 8 lbs per gallon. A gallon of Milk about 8.6 lbs. A gallon of vegetable oil weighs about 7.64 lbs. ---just for the record.
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Jim Davis

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Offline bow101

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Re: Bow weight
« Reply #7 on: November 17, 2014, 10:11:52 pm »
Look for some weights at the thrift shop  I guess and get this issue straightened out once and for all.
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Offline Drewster

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Re: Bow weight
« Reply #8 on: November 17, 2014, 10:15:06 pm »
Water weights 8.34 lbs/gallon if you want to be precise.  I agree with Pat on the draw weight per inch.  Most bows I've checked are 2 1/2 to 3 lbs per inch of draw weight.  Yeah, check your scales and be consistent with your testing.
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Drew - Boone, NC

Offline wizardgoat

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Re: Bow weight
« Reply #9 on: November 17, 2014, 10:53:59 pm »
I got a little digi scale from a big wood tool store for 20$
Much less scary than the bathroom scale method.
I know you said you don't want to spend money, but for me
it was money well spent.
And I can monitor the draw weight through the entire tillering process
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Offline Pat B

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Re: Bow weight
« Reply #10 on: November 17, 2014, 11:58:21 pm »
The actual draw weight shouldn't matter if you are building for yourself. Just make the bow comfortable for you to shoot.
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Make the most of all that comes and the least of all that goes!    Pat Brennan  Brevard, NC

Offline JW_Halverson

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Re: Bow weight
« Reply #11 on: November 17, 2014, 11:59:42 pm »
Quote from: Pat B on November 17, 2014, 11:58:21 pm
The actual draw weight shouldn't matter if you are building for yourself. Just make the bow comfortable for you to shoot.

How is that for sheer practicality?
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Offline Pat B

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Re: Bow weight
« Reply #12 on: November 18, 2014, 12:01:45 am »
...and cheap too!   ;D
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Make the most of all that comes and the least of all that goes!    Pat Brennan  Brevard, NC

Offline Pappy

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Re: Bow weight
« Reply #13 on: November 18, 2014, 05:27:28 am »
What Pat said. ;) :) and 3lbs per. inch is usually pretty close. :)
  Pappy
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Offline bradsmith2010

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Re: Bow weight
« Reply #14 on: November 18, 2014, 05:40:47 pm »
most bows back in the day when used to make a living,, were not weighed 
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