The only difference in the internals of "target" scopes and any other scopes is that "target" scopes typically, but not always, have 1/8 m.o.a. adjustments, and typical hunting scopes have 1/4 m.o.a. adjustments.
I use the Stoney Point target knobs on a Burris Signature 8-32X44mm varmint scope. Scope didn't come with target knobs, but Burris offered to put 'em on for $60. They charged me the $60, but shipped the scope back to me without the target knobs. The aforementioned Burris scope came equipped with 1/8 m.o.a. adjustments, and the Stoney Point knobs work great. I paid $42 for mine at Midway.
Before you just assume that target scopes have "better" internals than hunting scopes, I'd suggest that you contact Leupold or Burris and ask that question of those guys.