howdy. in my seemingly endless free time as a college student i have decided over winter break that im going to make a spinner target to get over the boredom that comes during winter break. i want to make two sets one that can withstand up to my 30.06 and another that is for up to rimfire only. what is the minimum thickness that you would use for each? im thinking using 3/8th plate should be sufficient for the centerfire and 1/4 should be fine for rimfire. and i was going to hang them so that all shots are deflected downward any input would be great.