I went out to complete my drop table to 1000 yards yesterday. I had never shot past 700. Everything was peachy till 900 when my elevation turret started turning hard at about 24 minutes. At that point elevation was OK but my bullet struck 2.5 feet left of the target. A couple minutes of windage could not move it. Everything struck 2.5 feet left. I take it my elevation turret is topping out and binding up the reticle, does this sound right? This is a Springfield with a 1000 yard rangefinder reticle so it would be no surprise if they didn't build lots of adjustment into it. If I am right what is the best step to get the extra 5 or 6 MOA I need to get to 1000? Shim it? Or mounts?