Yes, you could do the scope swap thing, as long as the rifles and the actions are the same. Example,say you have 3 Remington M700's (could be ADL, BDL, or a combination), say in .270 Win, 30-06, and .338 Win Mag. Since they are all Rem. 700's and all are long actions, then the mounts/base should align with the scope rings that you have on that one scope. Of course you would have to zero each time you did a scope swap. However, if you have 2 rifles, a Rem. 700 and a Browning A-Bolt, it won't work. Or 2 Rem. 700's, one in .270 Win (long action)and one in .308 Win (short action), it won't work.

You haven't mentioned what kind of rifle you're going to be putting these mounts/rings on. That could be a factor in determining what kind of mounts/rings you may need or want. Forexample, if you have a heavy barreled tactical or varmint rifle, you may want to consider a one piece actical base mount like Ferrell, Badger Ordnance, Warne, or Leupold (Mk 4) base and a set of tactical rings like Ferrell, Badger Ordnance, Burris (tactical extreme), or Leuplod (Mk4), just to name a few. There are several other good tactical mounts and rings that i haven't mentioned. But for a standard deer hunting rifle, the Talley or the Warne mounts and rings will do you a good job.