Originally Posted by jj1
Sorry if I'm being a bit thick here, but are you saying that the 60mm cover fits a 69mm diameter scope?
The 60mm refers to the objective lens size, the scope cover is bigger to account for the wall thickness of the scope/sunshade.
I have just measured the internal diameter of my scope cover (Nikko) and it is about 72mm, might be a bit loose on your Sightron but nothing that can't be cured by putting a circle of electrical tape around the inside of the scope cover to take up the slack.
At £7 you can't really go wrong