I don't want to use the dovetail system that is machined into my receiver, but a traditional base/ring system.

I prefer a dovetail front and windage adustable rear, Leupold or Redfield type system.

What base fits the Mark XXII ?

Caliber is .17 HMR, but I don't think that makes a difference

Got my base from Brownells, it's a Redfield two piece with windage on the rear and the front a turn in.