Youngeyes, I hope you had that filed away and didn't have to type it all in! Some very good info, gonna bookmark it for future ref. Many tks.
Hmmm, I seem to have plenty of CCI 400 SR primers on the shelf. They were there for the space gun and the 223 varmint guns. I'M a HiPower shooter. But sounds like they are not the best suited for those guns. But sounds like they would make good mid soft SP primers in a pinch.
I just checked, my Tula are KVB-9, standard pistol load. Not sure how that compares to the sporting pistol primers, I suspect the sporting may be the softer cups. Also found another 5K of the Tula in the wrong stack! Was gonna drop down to a 13# spring, may do it and see if it will ignite the Tulas. The 15# has been 100%.