I can understand Berg, the difference being... you're link is a website attributed to the shooting, buying and promotion of .204 Ruger caliber. The link I provided you provides insight from a few predator callers that I consider to be fairly well experienced and educated in the ways of coyote hunting.

I don't think anyone would argue that a .204 will/can/does kill coyotes. I do, however, believe the majority of succesful predator callers you ask will tell you there are better choices for a calling rifle. The 22 centerfires are undisputed by most as the

To each their own. Mine stays in the safe until I see a crow or groundhog worth playing with.