ສຽງ​ທີ່​ແບ່ງປັນ

Let us talk about the Margin of Error. A human head is roughly eight to ten inches wide. At a distance of eight hundred yards... that head is smaller than a grain of sand held at arm's length. Now... consider the variables. A light wind of just five miles per hour can push a high-caliber bullet... several inches off course. One tiny gust... or even a single heartbeat... can move your bullet ten inches off target.