Re: How do you space your rings on your scope?
much like it has already been said above:
1. as far apart as i can get them without #2
2. trying not to bump them up against the objective or ocular bells, and away from the adjustment housing. closest i'll get to them if i have to is 1/4".
eye relief will also play a part in how far apart i'll mount the rings from each other and how close to the bells / adjustment housing i'll end up. this will sometimes cause a little comprimise.
in case there is any misalignments in the tube, the rings, or any dreaded slipping they aren't binding up the works or abusing a housings. also if there are going to be any "out of rounds" in the scope tube, it's going to be where the bells and housing meet it. those points (connections) are also where the weakest links are going to be.
you can see in that video above how the ocular and objective bells flex the most, further apart rings puts more stability / spreads out the flexing across the whole optic rather than having it concentrated in 1 or 2 areas.
sort of like a longer wheel base on a car or truck - smoother ride over a bumpy road.