I have a 3X10 A-Line scope. It is my favorite deer hunting scope. It is a perfect match of length, weight, and quality of optics. I could not be more happy with any other scope. The selector ring is smooth as silk. I have done 2 box tests with this scope, and it returns to zero-perfectly(not evven off one click). And I own several high quality scopes made by Zeiss, S&B, and Swarovski to compare it to. Tom.