B55 stretching at full draw?

[LBR]

Very cool--thanks for the info.!  

At least we know that the load on the string is greatest at brace, and drops noticeably at full draw...but the fact remains that if the string contracts at all at full draw, it's nowhere near enough to make any noticeable difference in draw weight.

[Orion]

Agreed.  Also throws my theory out the window about the lower stretch string potentially exerting more force on bending the limbs at full draw.

If the strings start out the same length, any contraction as it approaches full draw would be greater with the stretchier string. In short, the lower stretch string wouldn't contract as much and would be longer at the shot vis-a-vis the B55 so if anything, it would be flexing the limbs a tad less.

In other words, its effect on increased arrow speed is due to its low stretch properties during the shot, not aided by an additional incremental bending of the limbs.  

Of course, we're talking small fractions of an inch here. Stuff that would not be practically significant.

[DanielB89]

Woah!! That's cool!!!

Thank you for that Fletcher!

I'll just stop talking false theories now!

[LBR]

Amazes me at the "old wive's tales" that get told about strings...even from people that are supposed to know their stuff.  I love threads like this though--helps to quell some of the fables.

Chad

[frank bullitt]

Saxton Pope, also tells of the high tension of the string at the nock, of a braced bow!

Hunting with the Bow and Arrow.

[forestdweller]

Brace height might not effect the measured draw weight much at all but your bow will stack more with a higher brace height making it much more difficult and uncomfortable to draw.

As for string material the non stretch stuff is indoubtly much better on laminated bows because they can handle it. B55, B50 and so on is better on all wooden bows in my opinion since it put's less of a strain on the bow.

I use a low stretch BCYX string and sure it is very fast but I can feel the strain it put's on my fingers and the bow compared to a softer not as high stretch material.

Stretch on some bows can be a good thing since as the string stretches throughout a shooting session it allows the bow to relax (through string stretch) slightly without losing any cast by slightly lowering the brace height over time.

This is probably best for all wooden bows.

[frank bullitt]

I disagree, John forestdweller.
I have shot selfbows and backed all natural material bows, with high performance strings since 1991. They are a compliment to the bows and their performance!

String materials are not created for certain types of bows, nor are bows designed for specific types of string matetials! As time goes on, each has been created to be the best!
That is what we strive for, performance at its best!
The best in tune, arrow flight, gentle on release, and  as a hunter, true penetration for a clean, quick kill!