For a Long range fox load, the CZ 527 in .22 Hornet will allow using up to 14.4gr. Lil'Gun powder in R-P brass with pistol primers and 40gr. bullets. The velocity of this load runs well over 3,300fps. I've used it on Columbia Ground Squirrels to 454 yards and it is effective as well as on coyotes to 200yards. The accuracy of this load is sub 1/2" for any and all of the 40gr. bullets available.
: In my CZ Euro Lux model with thin barrel, a single shot from 7 different loads with 3 different bullet weights from 35gr. to 45gr. all printed in one 1/2" group. Velocities ran from 3,100fps to 3,387fps. My brass lasted over 14 shots and is still in good shape. I sold the barrel to a friend at over 5,000rounds. It was sitll shooting in the 1's and 2's with Barnes 40-gr. HP's.(that's .1" to .3" at 100 meters)
: The CZ, Ruger and possibly Ancheutz are the only .22 Hornets suitable for the load listed above. For WW brass, subtract 1/2 to 3/4 gr. for max capacity loads.