Another issue. ZERO. Even two QUALITY mounts like Larue costing >$100 wont hold your zero between rifles.
Its one thing to have a quality mount that will hold zero on one rifle as you swap multiple optics on ONE rifle. But based on my limited understanding its nearly impossible to install two bases on two rifles, zero the optics on rifle A, then move the optics to rifle B and still expect it to be zeroed on rifle B.
Sorry, but it just doesnt work that way. (I admit to hoping that would work too)