why you use a bolt action and not a semi since your shots seem pretty close in?
Couple of reasons. The suppressed bolt action is slightly quieter than an AR. And I don't care for the nasty dirty brass that I end up with from the suppressed AR, and this rifle is lighter than any of my AR's. Plus this rifle is a 17/204 and I prefer to pick up my brass after a stand since .204 brass is expensive and I don't want to have to look for my brass, and more than I already do with a bolt action.
I've learned that I can be quite effective at killing coyotes with a bolt action. Only one stand this year that I needed a sixth shell, and I killed all six coyotes on that stand anyways.