Hi folks,
My original question was: What is the reasonable, practical max pressure in cup for this gun? And the approx max “safe” velocity expected, always using 240-260 gr hard-cast SWC or Keith-type bullets.

And below is a typical reply.

Why hotrod a .44 Special? If you need more oomph, get a .44 Magnum.

In the bigger stuff, I already have a 3" 29-4, a Ruger .45Colt Redhawk, a custom Freedom Arms .45Colt, a custom Bowen 5-shot .45Colt (by Hamilton) and a custom .500 Linebaugh (made by John) so I don't feel any need to hotrod anything.
I know that my car's redline is @ 7000 rpm, but I drive it @ 2300 rpm.

My questions were serious and intended to get beyond the "cowboy gun" liability defense in order to get some real data. Brian Pearce has apparently stated, in Handloader issue #260 (I've already ordered it), that the 696 is perfectly safe @ 25,000 cup and has published his recommended loads. This is what I was after. My thanks to RidgewayCO for the hint.
I would think that many 696 owners/aficionados would search out and enjoy this same information. I may be incorrect.
All posts were appreciated. Some of us may disagree; that's fine.
Sonny