FWIW ,, thru my chrony: ( ammo tested from several years ago,,)

3.5" Bersa Thunder .22
Rem. 36gr Golden Bullet - 857 fps.
CCI 40gr HP Velocitor - 982 fps.
CCI 32 gr. Stinger - 1171 fps.

6 7/8" Ruger MkII
Federal 40 gr Std. Vel. - 1007 fps.
Winchester 40gr Super X - 1041 fps.
PMC Sindwinder - 1110 fps.
CCI 32gr Stinger - 1298 fps.

There are some very interesting .22 ammo tests on youtube by tnoutdoors9