I load for .22 Hornet but, not with the powder you have chosen. I have the 77/22H in wood stock. I use two  loads for it.
11.3 grains of IMR 4227 [Out of KEN WALTERS PET LOADS.]
5.6 grains of UNIQUE.
The Hornet is for some reason suseptable to giving US fliers. I can have a 4 shot group at 100 yards and the 5th one will be 1 1/2 away from the group.
The 5.6 grains of Unique powder is a "SQUIB"
load that is good for ground hog/wood chuck at up to 25 yards. A GOOD 1850 fps city load.