ORIGINAL: quiksilver
TFox - those numbers definitely lookpretty close to what the ballistics calculator is spitting out - with a 20 yard zero.
Thanks for posting those. Most of us don't have access to that software, but that goes to show you - just a simple online calculator will get you in the ballpark.
Alsoshows those (Art)who werequestioning the "vacuum" calculationsthat the "Speed Degradation" within a normal archery effective range (50 yds)isn't really enough to be concerned about.
These charts take into account many variables.
BUT,like I said,the only number that really matters is the drop per yard number.
It doesn't even work for 1 pin shooters because the bow is being shot parallel to the ground.
I BELIEVE this is the trajectory chart for my hunting setup at 257 fps.
Not sure and my program isn't working right now,this was saved.
As you can see,at 40 yards,I can hit the vitals from 36 to 43 yards and in most real world cases,I have found that overall distance changes by LESS than a yard at each end with a speed bow and a slow hunting bow.
