Excuse my ignorance but what is a FX-II 3-6x36mm? I thought all the FX scopes were fixed power.
FX series is fixed. I think he meant 6x36.
The FX-3 6X series is 6x42, 6x36 is an older series, FX-II.
The 6x36 has a longer tube, the 6x42 has a shorter tube, LA mounting a bit more of a challenge, especially if you like your scope mounted back a bit.
Longer tube and more compact size favors the 6x36. On a SA rifle, I'd probably go 6x42, newer scope, reportedly better glass coatings.
DF
Edited to welcome you to the Fire...
