It was my .30 Carbine Blackhawk... 40,000 PSI Max and a 7.5" barrel.
I got my Ruger GP-100, in .327 Federal. 45,000 PSI Max in a 4.2" barrel that's been Mag-Na-Ported.
It's kinda nasty. And a whole lot of fun.
Attention Brass rats and other reloaders: I really need .327 Federal Magnum brass, no lot size too small. Tell me what caliber you need and I'll see what I have to swap. PM me and we'll discuss.