I have had two Barska scopes the 6.5 20x50 was passable except for the unusable higher setting due to pathetic exit pupil and then the windage mechanism failed. The second was a SWAT Tactical 30mm tube 8x32 x 44 with side adjustment. I returned it unused because the exit pupil was so small that it was unusable even at 8x. Save your money and by good glass. I have converted to Leupolds and Eotechs.
Cons: Unusable due to substandard exit pupil
This review was written in the old system and had content requirements that are different than reviews written today.