A good competant shooter will rangefind more accurately than a decent/expensive laser rangefinder which are to easilly fooled, needs practice. Set the scope up and mark your own ranges which is what everyone should do. The only scopes that do not require this are the older Burris Signatures which have a locking band to lock the marking ring in position.
Backlash or not is not going to make a scrap of difference, if there is lash the play is taken up upon the initial movement engaging the mechanical gearing, so whats the point in going all the way back when you can just rock it either side of pa and narrowing it down finalising low to high.
Backlash or not is not going to make a scrap of difference, if there is lash the play is taken up upon the initial movement engaging the mechanical gearing, so whats the point in going all the way back when you can just rock it either side of pa and narrowing it down finalising low to high.