out of a 3" barrel
Out of a 3" barrel I'd probably go with something a little light, so you can get a bit more velocity out of that short barrel. Something in the 90gr-115gr class, and +P. Cor-Bon makes really good offerings in this load. Hornady also makes a speedy little 90gr, if you can find it. And Remington makes a really decent 115gr+P JHP that you can get really cheap in 50rnd boxes.
AL