Hook - I'll likely get a lot of flack for this from guys that haven't been reloading for almost 50 like I have and think they know it all but here goes.
Manuals show what primers they use solely for informational purposes. The difference between standard primers is minor. Magnum primers burn hotter to better ignite certain powders like some Winchester ball powders. So to answer your question, yes you can use CCI SP primers in lieu of Win SP primers. Just don't use standard and magnum primers interchangeably.