I’m in the process of getting things organized for my range and would like some info as per size of board to use for setting up at 300 or 400 yard distance. I used to below to a gun club that was set up for only 200 yards and they had a 2x4 frame with a 4’ x 4’ ( approx.) corrugated plastic sheet to staple the targets to. Now, when shooting at 300 or 400 yards, would this do or should I go bigger on the size of board. Any info would be appreciated...