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calculating poundage at X drawlength

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Albert:
What Del said, with power stroke instead of draw length gives this:

draw weight at full draw = (draw weight at intermediate draw length)*(power stroke at full draw)/(power stroke at intermediate draw length)

in your case:

brace height = 6''
intermediate draw length = 24''
power stroke at intermediate draw length = intermediate draw length - brace height = 24''-6'' = 18''
draw weight at intermediate draw = 40 lbs
power stroke at ful draw = full draw - brace height = 28'' - 6'' = 22''

draw weight at full draw = 40 lbs * (22'')/(18'') = 49 lbs

Bert

Selfbowman:
Del that’s s close on my hundred pound bows also

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