Bought a $15 Tasco, 3x-9x Supercon Omni View yadda yadda yadda. Put it on a gun, fiddled with adjustments, and noticed a large chip or debris when looking through the scope. Internal. Took the scope off the rings and noticed an indentation on the tube that matched the chip. Wasn't me I think; I had the scope all the way back in the rings because it has relatively little eye relief. Odd that I did not notice it before I bought it. No biggie, I was just going to throw it on a .22.
But then I noticed that I only see the chip when the scope is at 3x. 4x-9x is fine.
Why is that?