Haven't tried it, but probably not. The front likely would fit, but the eyepiece on the STR is low rather than high. Not sure if the eyepiece cover could be rotated and still snapped on. If I rotated the entire case, the opening for the tripod mount would be on top, not bottom. The STR also has a much larger section between the eyepiece and the lens that contains the reticle.
Would like for it to work, as it would solve my problem. Anybody tried the STS case on the STR?