I origionaly posted this on the Tech Talk forum and have not recieved any responses, so wasn't sure if I posted it in the right place or not. I just got that sinking feeling, after thinking my sight is dialed in. Hopefully y'all can help. My bow has a Keller pendulm sight, and I sighted it in from a friend's deck. My sinking feeling comes from realizing that the land behind the deck was sloping down at probably 10 - 15 degrees and was not horizontal. Will this throw off my sight (impact point) since my treestand will be on a place where the ground is level? Or to look at it another way, the relative height I was shooting from at 30 yards (including the falloff of the land) was from about 24' high, but my treestand will probably only be about 13' -15' high (on level ground), thus changing the angle one would hold the bow when aiming, and of course the pendulum angle. On the video that came with the sight, it says to sight it in at any height over 12': first at a target 12 yards away, and then it should be accurate no matter what the distance out to about 30 or 35 yards. I don't remember it specifying that it needed to be on level ground, or that if you changed the height you were shooting from, that it would affect the sight's accuracy, but I have ran across a couple of references that seem to indicate that the impact point changes with a pendulum sight if you're treestand height is not the same as the height you used to sight in the bow. Does anyone have experience with this and using a pendulum sight? Does it sound like I need to resight in my bow from my treestand location on flat ground? Or is this nothing that would make a difference and my sight should be accurate? Thanks for any help and clarification on this.
I don't think the ground being level or not around the target would be a concern; that's irrelevant to the equation. Now, the height at which you sighted it in may be important -- but apparently to the instructions you alluded to it's not. The best way to find out before you go hunting is to drag a bag target close to a tree and go up in your climber and shoot at varying heights/distances to confirm POI and that you're properly sighted in... sure would give you peace of mind. )
I used a Keller for MANY years. I never noticed any differences if I was a few feet (elevation) either direction of where I sighted it in from. You are most likely going to be fine.
Thanks for the feedback everyone. Went to the archery range and sighted it in the locked position for shooting on ground at 20 yards. Then, I was able to get out at stand height and on level ground and restest the sight at 12 yards distance according to the instructions (this being mid range), and it is dead on 1" high at 12 yards per the instructions, so I feel confident now that it is sighted in correctly. Glad to have the peace of mind.
