I'm going to go diansaur on you & suggest looking for a nice 4" Security Six. I think that's one of the best .357s Ruger has ever come up with. It's not as concealable in summer when minimal clothing is worn, but for every other season it's a good choice!
Let us know what you decide!
I dont have an SP, but i would say that would be what you want, the LCR is great for cc, but accuracy ???, what distance are you talking about ?
The LCR is great very short range, 15 ft or so.
I also have the GP, great for accuracy, but not so much for cc.