While I am loathe to touch a scope once it's been mounted and perfectly dialed in, I have switched scopes on occasion. The most recent was with a.Vortex AMG that was mounted on my PRS rifle in 6.5x47. It seemed that this scope would be a perfect match for my Savage 22 rimfire that I use for long range shooting out to 350+ yards, with good accuracy. The problem with rimfire shooting at long range is that the scope needs to have certain attributes in reticle design, turret range, and focus/parallax control. The AMG/EBR-7 fits the bill quite well. Fortunately, the rings/scope alignment did not have to be re-adjusted, and the scope with bases could be directly mounted to the Warne 20 MOA base on my rimfire. Noting the location for each rifle on the pic rail scope base, and the turret settings for zero with each rifle, I was able to return to within .3MILS POI with each. I did use a specific torque setting for the ring mounts for each rifle. The AMG worked out so well on the rimfire that I eventually kept it on for LR hunting/Rimfire PRS competition, and bought an ATACR F! for the 6.5x47. The only bothersome point is having a scope on my rimfire that costs 3X more then the rifle.....