There used to be a line in the series of BSA scopes titled the "Sweet .22", which wasn't rated for spring-piston driven airguns, even though it was stated that it was shockproof, it wasn't even rated for certain heavier recoiling centerfire cartridges; No idea, whether that has been fixed/developed or not in the newer generations, but I can say with certainty that, if this BSA x36 of yours is a derivative of the Sweet .22 line, then it's NOT springer rated.
However, from what I was able to make out of this model, is that it tracks rather poorly, as some folks who bought these scopes from Amazon have written in the ratings/comments.
EDIT: I should make note, that I've been wanting to buy a Sweet .22 some five years ago for my Cometa 300, but I've instead gone with a UTG 3-9x40.