I've shot over 5000 CCI SRP loaded in my 9mm load in the last 3 months. You will get a small bump in velocity, and the cup is higher or harder(depending on the maker); otherwise you're good to go. If your load is close to max...consider bumping back your load a tad and working up prop
One caveat...S&B SRP are really hard, and should be used only for rifle.