Let's see if I can find my records:
7-5-93 Ruger Mkll 6 7/8 barrel Rem 22 lr Target 10 shots averaged 1042 about 10" from muzzle. I know its not 4 in revolver but its the first record I could find.
finally:
7-29-84 Darn, no std velocity ammo tested. All high velocity but FWIW: gun Colt Frontier Scout 4 3/8 bbl. All ammo tested with 5 shots, muzzle velocity averaged from a low of 1008 for Win SuperX solids to a high of 1029 for Fed HiPower and 1028 for Rem Thunderbolt. Rem Yellow Jacket averaged 1129 and Rem viper avg 1115.
On the same day my 24" Marlin m 39A averaged 1200 with the Win SX solid, 1260 for the Rem Thunderbolt, and 1390 for the Yellow Jacket.
Maybe this helps just a little.
What I did notice was that game I hit with the revolver just didn't seem hit as hard as game hit with the rifle. I had to be much more careful to hit vitals with revolver shots or I lost game.
Hmm this might be a good excuse to set up the old Ohler and run a whole new set of tests. Some of the ammo I have probably dates back to before the above tests were done. I have a little std vel ammo now. I could add my kid's CZ Scout, Chipmunk, and Savage to the program. And my shoulder wouldn't be sore afterward. Might be fun. Don't hold your breath tho as I haven't managed much range time all spring.