I have guys all the way up until it won't hardly come off period and still moves a bit with time. One guy suggested changing my mount but then that's a bit more modification than I want to do.
If I tighten it to where I don't have issues, it doesn't come off easily and the dust cover scopes actually take less time to change out.
Still like the scope, for what it's designed as which is a removeable sniper scope it does fine. For me, as a permanant mounted battle scope, I have issues.
Tj