short draw chrono results

[Badger]

  Brad, my group used to meet in Pasadena once a month. One of the guys in our group seldom tillered his bows beyond about 21" yet they were singing arrows as fast as the longer draw bows. The only thing that could explain that is #1 force draw curve goes down with set and hysteresis goes up. They start dropping off rapidly once set starts happening, even small amounts of set. The one I just finished the other day I can't draw because I haven't shot in a few years. But I did test the force draw curve and I know the approx efficiency of the short bows. I am pretty sure it will shoot in the 170's.

[bradsmith2010]

wow thats amazing, really cool info,,   have you shot the bow at like 20 or 22 inches,, ??

[Badger]

wow thats amazing, really cool info,,   have you shot the bow at like 20 or 22 inches,, ??

   No, my shoulder is out, and I can't draw hardly anything. If I spend a few days tugging on bows I should be able to get it working again.

[bradsmith2010]

ok heal up soon,, it will be fun to see what it does

[bassman211]

Brad... would loved to have met Tim Baker, and Jim Hamm. When you get old ,and haven't shot for a while the short bows can be plain nasty to pull, and shoot accurate if they are heavy draw bows. At my age I am having fun shooting 64 inch target bows at 35lbs. 25 inch draw indoors at 20 meters. Cherish your youth guys . It leaves you faster than you can imagine.

[bradsmith2010]

yes they are challenging,, I can only pull about 50 at 23 at the most,, sometimes I want to try to pull them further,, to see what they will do,, but have to take the weight down,,

[Badger]

    All this short bow talk has kind of revived my interest. I started playing around with some numbers today and realistically I think a 24" draw bow can hit 180, I would set the holy grail at 184 with 10 grains per pound arrow. DCM hit the holy grail at 28. Might be fun to see who gets to 184 first. Might take weeks and it might take months but I think it would be interesting. I am starting to think a lot of bows we are designing for 28" draws are actually designed for 24" draws. 

[bassman211]

What design would you use, and what wood at what weight bow to ring up those numbers?  I am curios.

[bradsmith2010]

Im just guessing,,Im sure Badger can make some pretty close calculations,,,something in the 60 inch range for self bow,,
might even be ok for sinew bow if tillered with stiffer handle section, I dont know,, wood,, yew hickory or osage,,elm,,what ever the best stave was, not so much the wood,,I just would have to start making and see,,

[Badger]

 I think I would go between 56" and 60". The shorter bows do have a distinct edge in efficiency. I think a Mark St Louis design would have the best chance of hitting that but I would not rule out a longbow with 4" of reflex. If I went with a longbow I would probably go between 60 and 62, If I went with a recurve 54 to 58. It might be fun to establish some holy grails for different types of bows. Self or laminated, recurve or longbow etc. Make them kind of hard to get but not impossible. Once they hit the holy grail it moves up one notch.

[Badger]

    I don't think I would want to move it up until about 5 guys hit it.

[bassman211]

What draw weight bow? 35lb with 350 gr arrow. 40lb bow with 400 gr arrow, 45lb bow with 450 gr arrow ,50 lb bow with 500 gr arrow. etc.

[Badger]

What draw weight bow? 35lb with 350 gr arrow. 40lb bow with 400 gr arrow, 45lb bow with 450 gr arrow ,50 lb bow with 500 gr arrow. etc.

  exactly 10 grains per pound and always based on a 1 3/4" handle section.