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Main Boards => PowWow => Topic started by: COMBER on February 27, 2010, 08:56:00 PM

Title: How Do Most Bowyers Measure Draw Weight @ 28"?
Post by: COMBER on February 27, 2010, 08:56:00 PM

Do most Bowyers measure a 50#@28" bow 28" to back side of riser or 26 1/4 to deepest part of grip? Let me know because I've been finding some differences in my bows weights.
Thanks,
       Jake

Title: Re: How Do Most Bowyers Measure Draw Weight @ 28"?
Post by: John Havard on February 27, 2010, 09:14:00 PM

Hi Jake,
Can't speak for other bowyers but we use the AMO-approved standard which is (for 28" AMO draw weight) measured 26.25" from the throat of the grip.  We use a digital calibrated scale on ours.

Title: Re: How Do Most Bowyers Measure Draw Weight @ 28"?
Post by: wingnut on February 27, 2010, 09:22:00 PM

Like John said we do the same thing.  

Standard is well standard.

Mike

Title: Re: How Do Most Bowyers Measure Draw Weight @ 28"?
Post by: xtrema312 on February 27, 2010, 09:44:00 PM

The difference I think is in the accuracy of the scale used.  I think there are some out there with not so accurate scales.  Then there could also be a little fudging the numbers here and there to the next whole # and that could throw things off a little more two different bows being marked the same, but off a pound or so in comparison.  I was told my one boyer that the bows will settle into a weight and often drop a pound or two in the process.  I don't know about that.

Title: Re: How Do Most Bowyers Measure Draw Weight @ 28"?
Post by: COMBER on February 27, 2010, 10:08:00 PM

Thanks for the info guys. The 26.25" is what I thought was correct and I'm gald you guys confirmed it.
Thanks,
       Jake

Title: Re: How Do Most Bowyers Measure Draw Weight @ 28"?
Post by: Jim Curlee on February 28, 2010, 08:12:00 AM

Everybody does it their own way.
My "standard" is measured to the back of the bow.
Why would you measure it to the center of the bow handle, is that all the longer your arrows are. Seems to me I draw the arrow to the back of the bow, not the center of the bow. hmm
Jim

Title: Re: How Do Most Bowyers Measure Draw Weight @ 28"?
Post by: Rob DiStefano on February 28, 2010, 08:36:00 AM

i got tired of messing with analog spring scales and just ordered out an easton digital.  imo, a good bow scale is more important than a chrono ... though we as bowhunters really don't need either.  :D

Title: Re: How Do Most Bowyers Measure Draw Weight @ 28"?
Post by: Missouri Bowman on February 28, 2010, 10:00:00 AM

That's what I thought too Jim, but I'm not sure if that's the standard.

Title: Re: How Do Most Bowyers Measure Draw Weight @ 28"?
Post by: Doc Pain on February 28, 2010, 11:15:00 AM

leave it to the AMO to make things confusing.

Title: Re: How Do Most Bowyers Measure Draw Weight @ 28"?
Post by: LBR on February 28, 2010, 03:45:00 PM

On the bows I've checked, 26.25" to the throat of the grip generally equates to 28" to the back of the shelf, or too close to worry about it.

AMO does specify 26.25" from the throat of the grip for a 28" draw weight specification.
  www.texasarchery.org/Documents/AMO/AMOStandards.pdf (http://www.texasarchery.org/Documents/AMO/AMOStandards.pdf)    

Some refer to measureing to the throat of the grip as "true draw", which makes it confusing and will make the numbers seem much better than they actually are if you don't know any better.  I.E., 28" "true draw" is actually almost 30" AMO (29.75").

I also agree that the scales used can be a big cause of variance.  I've heard of some bowyers, and seen several shops, using regular old hanging scales (clearly marked "not legal for trade").

Title: Re: How Do Most Bowyers Measure Draw Weight @ 28"?
Post by: 2treks on February 28, 2010, 04:02:00 PM

???????????

Title: Re: How Do Most Bowyers Measure Draw Weight @ 28"?
Post by: Overspined on March 01, 2010, 09:10:00 PM

i know how some bowyers measure and not all do it the same! although a true standard that everyone used would be great! Too bad they don't all look up what is considered the gold standard.