TKS John - I have some loading data might be interesting to you. PM if you wish.

This data is only suitable for the stronger actions like CZ527, Ruger M77/Hornet, Thompson Center Contender, Ruger #3's - Anschutz.

This rifle appears suitable, but of course must be worked up.
Since I was able to use Pistol Primers, this data actually produces less than 50,000psi.

Over 20 firings on my brass now in a CZ527 with ZERO losses to expanded pockets. Best shot so far, was a buck gopher at 454 yards.

It would also be suitable for properly built & headspaced Martinis.