The 17 hmr, by a long shot.

17 gr. bullet at about 2550fps = 245 fpe
20 gr. bullet at about 2350fps = 250 fpe

and the .22 lr only does this

31 gr. bullet at about 1430fps = 141 fpe
38 gr. bullet at about 1260fps = 134 fpe
40 gr. bullet at about 1080fps = 104 fpe