itwill be more like 50-60" wide, because what MAKES the pellets "spread out' is minor differences in how they "buck" the air. The SLIGHTEST flattening on one side, etc, makes one pellet diverge from the path of the others. that divergence is NOT in a straight line, either. it's in a minor curve. So double the distance does NOT just mean a doubling of the size of the pattern. It is actually much worse than that.