Thanks to both of you.
Its odd. I was able to look at Reloader Magazine (09 annual addition). it showed that the test loads listed in there, including the IMR 4831, for the 7Mag used a Winchester Large Rifle Primer. Yet in the 2 manuals i've seen so far they all recommended a Magnum primer.

So,
I've already loaded up the 5 with CCI 200 primers. I bought the Winchester Large Rifle primers and loaded up 5 using them.
I still can't find any magnum primers locally

We will see what happens this weekend when i try them.