BUT DO NOT FORGET, the gun itself makes as much difference as any particular ammunition you may select. For instance, I have a NM Ruger BEARCAT 4" 22LR pistol that is 125 to as much as 150FPS faster than any---ANY!!!---other 22 pistol of ANY BBL length we've ever tested. It is a fast as most but not all 22 rifles. When this was first discovered while Taffin and I were testing 22 sixguns we thought the dang chronograph had gone kerflooey. NOPE !! It was this gun specifically that was 150fps faster than the other pistols we had along to test, a Ruger OMFT 5 1/2", a Ruger Bisly 6 1/2", and a Ruger Super Single Six 6 1/2" pistols. Since then I've ran it against all my Ruger MKII pstols, 4 3/4", 5 1/4", 6", and 6 7/8"; the Bearcat was faster than all of 'em and no other was even really close.
LET me note this also' I have clocked other 22 pistols that were so damned slow a Whammo slingshot might have tossed the bullets harder. NO Fooling !!!
THe only way to know is to run a lot of ammo from YOUR 22 handgun acrossed the chronograph screens. ITS gun edgumakashunh at it's finest !
And so it goes...