22 v 6 CM short barrel

[mioduz]

I want to build myself a dedicated thermal coyote rifle. I will likely throw a day optic on for ground hogs in summer time. I may elect to take a smaller deer or antelope in future but I have rifles better fit for that. I want short barrel 18-20" max. What is the best cal 22 v 6 cm. I was mostly ready to go with 22 but the short barrel had me second guessing a bit.