Originally Posted by joel the signman
thats why i asked how far to the target.20yrds is 20yrds.
That I agree with.
If you measure from the base of your tree out 20 yards to a spot a deer is standing you should shoot the 20 yard pin dead on no matter what the angle.
If you climb 20 feet up a tree shooting the same spot point to point on the ground will be longer but the effect of gravity on the arrow is still based on the horizontal plane of 20 yards instead of the 23 yards point to point or whatever it actually is. Arrow drop is based on the horizontal plane not the vertical plane. If it is 20 yards straight accross and your shooting a severe angle down where the actual distance may be 30 yards you would still shoot the 20 yard pin.
When using a range finder you should mark your yardage from either from the base of the tree or from the stand straight out in front of you to a tree at the same level, not to the ground.
Where you aim is a different matter, assuming you want all shots to be a double lunger you have to adjust the aim point accordingly. Just as you have to move your aim point back as the deer quarters away you have to move the aim point up the deer as the angle increases to pass through both lungs.