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Interesting Formula for selecting accurate bows...

Crow Terminator

Crow Terminator

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This has been around for a while, but in the last few years, has taken off in popularity due to people discovering how accurate it is for selecting bows. Have you ever had that bow that you could just shoot scary accurate with, and do it effortlessly? There may have been a bit more to it than just the bow being special...it may have been that the formula fit you in what they are calling the "sweet spot". It's more than just picking a long A-A bow and large brace height....you factor in your draw length. The math is to take your draw length minus the bow's brace height...then divide that number by the bow's a-a length. This will give you a number...and apparently, the "sweet spot" has been determined to be in the .535 to .635 zone.

I thought this was kind of silly at first...until I started playing with it, and was quite shocked at either how accurate the formula is...or how coincidental it is. I've owned a lot of bows...some that were target specific with large brace heights and A-As...and couldn't shoot them worth a hoot. Those bows aren't even close to the sweet spot...so that's neat. I have a couple of bows that I've shot that are just awesome to me...I shoot them really well...both land in the sweet spot of the chart.

Here's a link to it. It does the math for you...all you gotta do is put your draw length in, and start clicking on the list of bow manufacturers, and it will show you the bows that fall into the "sweet spot" range for your particular draw length.

http://www.bowdb.com/#/bows?manu=Mathew ... FromMiddle
 
Leaves out two important aspects of selecting a bow in my opinion . Grip and draw cycle . I get a good feel of a bow with a good grip and smooth draw cycle . Nothing beats shooting a bow before buying .
 
Radar -- Poole's intent for the formula wasn't to be used as an "end all" for selecting a bow. It's more of a good starting place to determine how accurate a bow may be at your given draw length. If you watch the video listed below...you'll see why this came to be. People have long been told that the longer the bow, and bigger the brace height, the better a person will shoot with it. And that simply is not the case.

For the record...I could personally care less if the bow draws aggressive or smooth, just as long as it's one of those bows I could practically stand on my head and shoot center X's with all day long. That's what the formula is trying to point people towards.

Here is Greg's thread with a video in it. He also responds throughout the thread. I can't remember if it is in this thread or another one, but Nathan Brooks and Levi Morgan also chime in about it, and find it to be pretty accurate as well.

http://www.archerytalk.com/vb/showthrea ... 7s+formula

If you take his formula and look up bows you've had in the past...you should start to see patterns in the number ranges of the ones you shot well vs the ones that were not so great. At least that has been the case with most people, including myself. The bow's I've shot extremely well have been in the .580s range.
 
My Hoyt Spyder Turbo has had multiple QC issues but I can flat shoot it better than any bow I've ever owned. It has a 6" brace but I see no reduction in accuracy.
 
Good stuff as usual CT.

The most accurate bow I ever owned was a Whisper Creek Navigator with a 9.25 inch brace at (I believe) 32 ATA.
I got about 270 fps at 65 pounds.

It was a flat shooter and very forgiving.

I have long known that some people shoot shorter brace heights better than others.

Unfortunately, I am NOT one of these people. No matter what the ATA.
 

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