@bubatrucking It seems that you have an issue then. What do your state regulations stipulate for taking coyotes? You live in a southern California city where I assume you don’t have a lot of open land on your private property. You reside in a state where you are not permitted to shoot lead as of July 2019), you can’t use a firearm (according to your above quoted post), and you’re a horrible shot, but you want to drop coyotes with a body shot?
Let’s be realistic and logical. The best option I can think of would be (at minimum) a suppressed 22-250 using varmint rounds. Then again, I am absolutely clueless as to the environment you’re talking about other than it sounding suburban. What’s the backdrop look like? I don’t know of a .30 caliber airgun/projectile combination that will drop a coyote with a body shot. They will usually spin run off or just bolt after being shot in the body. To drop one with a .30 air rifle would require a precise shot to the brain. If you’re a horrible shot, how do you intend to make that happen? Have you asked anyone at the Department of Fish and Game/Fish & Wildlife what can be done on their end? Are there any trappers that can come in to remedy the issue? Professional hunters? I really don’t see using a .30 caliber airgun as a reasonable solution in your situation. Have you considered the possible impact of taking this course of action in terms of legalities, safety, ethics, and how airguns and airgun shooting sports may be viewed in the aftermath? Things to consider. Since it’s been about a month and a half since starting this thread, what did you decide to do?