The CDP power floor is 165,000
For a 230 grain bullet, that would make the minimum velocity 717.4 fps - I'm running in the 720 fps range. with no signs of excess recoil. (cases don 't go far)
Now here's the question: Do I actually have the 13 pound spring on there, or did I take it off when I ran out of 200 grain bullets (original reason for the 13 pound spring)...
I'll have to double check that. It could possibly be a 16 pound spring. Whatever spring is on there is good though...