If you want external turrets or close range focusing:
I have one of these and I a a big fan. It is fairly large for this configuration, but very well built, bright and clear. The turrets are 100% repeatable which is a nice bonus. $300 for this scope is a steal.
For a streamlined hunting scope, Leupold FX-3 is an excellent option and I like the heavy duplex reticle for low light:
If you are up to paying a little more for a boost in image quality, try this IOR:
Or this Meopta:
There are some other scopes out there, but if you want a fixed 6x, I would be looking at one of these.
I have played with all four, I still own the SWFA SS, which sits on my airgun owing to its excellent close focusing ability.