I had a Ruger Speed Six with a 2 3/4'' barrel
I have a Glock 27
Fair comparison since the revolver barrel length doesn't include the cylinder, but the semi does include the chamber.
Chrono average for 5 shots:
Speed Six: Federal 125 gr. JHP magnum @ 1,248 fps / 432# KE
Glock 27: Speer Gold Dot 155 gr. @ 1,134 fps / 442# KE
Glock 27: Winchester Ranger T 165 @ 1,116 fps / 456# KE
The Glock 27 slightly trumped the snub .357 in both bullet diameter and KE.
If capacity and follow up shots are taken into consideration, the Glocks advantage increases further.
9mm +P minimum. 40, 10mm or 45 preferred.