Hi Sterry,
i use a .22 hornet for fox, can,t fault it stops charlie out to about 200yds no probs (which i think is max distance for night shooting ) i reload using 10.5grain of Vit N110 powder with a 40grain V max bullet gives approx 2850 ft /sec , not to be underestimated enough to stop any fox in it,s tracks.also the hornet can be moderated very well, and has no recoil to speak of, imo excellent calibre for use in areas where range is limited to 150 / 200yds
if possible try before you buy