Hey Ron,
I just found my way over here since MML is down.
Good looking cases and plug. That is the same primer is use in the Speer 38 plastic cases for the MK95. The CCI mag primers were the recommended primer for MK95 by Knight. I never really had good luck with the small rifle primers use 38 spl cases, either. I don't think they have quite the heat and flame needed.
Shawnt