I have washers under every screw in the coop. And I'll use some steel wire to better secure the hardware cloth. I'm sure o have some around somewhere.. if not, ill get some. I wanted to get everything in place, and now I'll make sure everything is more secure. Thank you for the idea. As for the rifle: I have pretty much any caliber needed. I was planning on using a 223 as that has the best scope on it and is sighted in for about the distance of the coop.. figured then I wouldn't worry as much about missing and deflecting off the chainlink.