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Carbon Express Adjusted Draw Weight Help

2K views 6 replies 3 participants last post by  Scott R 
#1 ·
Hi, I just got a new Bowtech Carbon Knight.
it's set to 60lb with a 27.5" Draw Length.
I want to know if I'm doing the Calculations correctly on the CX Weight Adjustment chart.

Bow Draw Weight Bow Draw Weight Calculated
59.9 lbs. or under 60 lbs. or over Draw Weight
1. Measured Draw Peak Weight ---------- --------- = 60
2. Round Wheel 0 0
High-Energy Cam +8 = 68
3. 65% - 80% Let-Off -5 = 63
50% Let-Off 0 0 =
4.Insert & 100 grains Screw-In Point - -7 = 56
5. Arrow Length 28" +3 = 59
6. Finger Release
7. If the bow's speed rating exceeds: IBO

270 FPS 335 FPS +12 = 71

Adjusted Bow Draw Weight = 71 Lbs adjusted Draw Weight

Just want to check to see if I'm correct

Thanks in advance
 
#4 ·
I've been shooting a bow for almost 55 years and shooting Carbon Express for about 8 years and I'm an engineer. I don't understand the purpose of this adjustment chart. What do you do with the final number? I just just OT2 or AA to be sure my arrows have enough spine.
 
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