The PSS's have a different H-S stock, includes a palm swell for instance and an extra stud on the forend so you can mount a sling and a Harris separately. The metal finish is also switched, no gloss at all, maybe called Parkerized. Otherwise they are pretty similar to a VS, doubt there would be much difference in base accuracy. For a while the PS's could be had with detachable mags, they were junk.