Just recently bought two, one a 4-16x50 tactical model for the 45-70 BC, the second one I bought is the 6-24x60 swat model, mounted that on a sharps 50-140, both for load devep., target shooting and hunting. Happy with them both, but the 4-16x50 has to go back --- after a couple of shots the power ring is stuck on the 14 to 16 range, it had a tight spot in the travel to begin with out of the box. Admittedly I might have squeased the scope with my rings too tight. My supplier said to bring it back and will send it off for repair. Otherwise both seem pretty good, the 4-16 is my prefered with the green illuminated crosshair, and the glass is very clear. With the 6-24 the glass is not perfect but acceptable especially for the cost. When you crank it up to 20 or more power it's not as clear as more expensive optics. Both shoot excellant groups, and I would consider buying another. Have not looked at their lower end models, not sure if I want a scope for under a hundred bucks on a rifle that has substancial recoil.
Will be interesting to see how Barska handles the return for repair.
Good luck in your purchase of whatever. Happy hunting and shooting.... Bob.