A 22 Hornet's case length is only 1.394! Heck, a 6mmPPC has a minimun length of 1.5 inches. Though it wasn't listed in the chart I just looked at, I wonder what a 300 Whisper or 30 Herret works out to. I believe they're both based off of a 357 case necked down to 30 cal.
I'd stick with the old tried and true 44mag. You don't have to reload because of availability and just about everybody makes something chambered for it. Revolver(single or double action) and single shots.
He took me!
Wish you were here.
Proud Parent of a Marine