Here are some velocities from my 3" S&W 65. I've seen that a given load will chrono pretty differently between one gun and the next (even from guns with consecutive serial numbers), so this isn't any proof of how a given load will perform from any other gun.

Sellier & Bellot .357 magnum 158-gr JSP

average velocity 1077 fps, extreme spread of 37.47, standard deviation of 13.82.

Remington .38 spl +P 158-gr LSWCHP

avg velocity 842.3 fps, ES 31.49, SD 12.88

Federal .38 spl +P+ 147-gr Hydra-Shok

avg vel 896 fps, ES 25.4, SD 8.67

Winchester .357 145-gr STHP

avg 1175 fps, ES 84.78, SD 32.93

Handload in .38 case (5.1 gr Unique/147-gr Rainier plated DEWC seated flush)

avg vel 967.5 fps, ES 47.83, SD 17.52

Handload in .38 case (6.0 gr Unique/158-gr LSWCHP)

avg 883.3 fps, ES 85.12, SD 39.03

Anyway, I hope this is of some interest. I've opted for carrying the .357 STHPs, but I'd feel fine with the Chicago PD/FBI load or that DEWC handload, too. If my wife were to be handling the gun (for instance, if it got used as a house gun), I'd put the DEWC handload in it (it's pretty pleasant to shoot, and it moves right out).