6.5 Grendel or 6.8 SPC, either one a better choice than any of the 22's.
I'd go with the Grendal also... I have one...its only handloaded....
28 grains of 3031....
Hornady brass is holding up real well also...
have one batch of 10 rounds that I have now reloaded 20 times...
neck sized, body die, and annealed each reload....
Ruger American Predator.