Main Discussion Area > Bows
Looking for a 400 yard shot
Del the cat:
--- Quote from: sleek on August 26, 2025, 10:55:53 am ---... Arvin and I did a force draw chart on that bow last night. Its an amazing bow, storing just over 104% of its draw weight in energy. That is phenomenal on its own.
I use the formula 1/2(A+B)÷12=X
A and B are the weight at consecutive draw lengths. I do a force draw chart, starting at a 7 inch brace. Since 7 is brace its pulling 0 pounds. The chart looks like this: first column is inches of draw, second is weight in pounds.
7:0
8:2
9:9.8
10:13.4
Plugged into the formula it looks like this:
1/2(0+2)÷12= .083 foot pounds of energy
Then I move down from inches 7 to 8, to 8 to 9
1/2(2+9.8)÷12= 4.92
This is repeated all the way down the FD chart. When completed, I add up all the foot pounds of energy stored in each inch of draw. That tells me total amount of energy the bow stores when drawn. Then I divide that number by the draw weight of the bow to get a percentage of efficiency: how much energy the bow stores vs how much it draws. Compounds are always over 100% and a good self bows will be 85% or higher.
I hope that helps you out.
--- End quote ---
Cheers, that clarifies it :)
Del
sleek:
Whelp, sadly my 400 yard shot did not happen this year. My bow is more than capable, my strings dont blow up anymore, now its my arrows that are the limiting factor, and possibly my release. The trick is to get that arrow off the bow without any interference with the bow. My fetching keep striking the bow and crumpling them. That causes them to act like speed brakes vs vanes.
In other news, my wife shot one of my prototype 35 pounder bows to a distance of 253 yards. The record was 217 yards. Thays a long was for a 35 pounder to go and it does glfurther my confidence in my bow design. Despite her being new to flight archery, she has already taken the world record twice in the 35 pound class. I think with the perfect shot and arrow returning she may be able to hit 300 yards. That would be an incredible goal for her to reach.
Next year's goal, 400+ with a 90 and a 50 pounder, and 300 with a 35.
So I have many arrows to make for a 35, a 50, and a 90 pound bow, as well as new bows for all those categories. Hopefully I can learn some lessons from this year and apply them effectively. Next year is already coming fast!
JW_Halverson:
--- Quote from: sleek on September 06, 2025, 01:35:44 am ---Whelp, sadly my 400 yard shot did not happen this year. My bow is more than capable, my strings dont blow up anymore, now its my arrows that are the limiting factor, and possibly my release. The trick is to get that arrow off the bow without any interference with the bow. My fetching keep striking the bow and crumpling them. That causes them to act like speed brakes vs vanes.
In other news, my wife shot one of my prototype 35 pounder bows to a distance of 253 yards. The record was 217 yards. Thays a long was for a 35 pounder to go and it does glfurther my confidence in my bow design. Despite her being new to flight archery, she has already taken the world record twice in the 35 pound class. I think with the perfect shot and arrow returning she may be able to hit 300 yards. That would be an incredible goal for her to reach.
Next year's goal, 400+ with a 90 and a 50 pounder, and 300 with a 35.
So I have many arrows to make for a 35, a 50, and a 90 pound bow, as well as new bows for all those categories. Hopefully I can learn some lessons from this year and apply them effectively. Next year is already coming fast!
--- End quote ---
There's something to live for! Good luck buddy, I'm cheering for ya.
sleek:
The scenery out there is really amazing. Here is a shot off all my gear Id brought to test and compete with.
willie:
nice bows.... cool pic
--- Quote from: sleek on September 06, 2025, 01:35:44 am --- I have many arrows to make.....
--- End quote ---
theres gotta be a way to test shoot arrows before the annual competition.
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