if crossing open terrain, go prone (and then roll) every 3-4 seconds (if you can't find cover that often) So what makes you "think" the enemy will be so stupid as to just STAND there, nd let you shoot at them, in daylight, ESPECIALLY after they become aware of you, hmm? Why WOULDN'T they either use darkness or dodge, use cover, etc, as they approached your "fort", hmm? The ones who are THAT stupid will get wised up the first WEEK after shtf. They will either get shot, or will have SEEN others get shot, so they wont be OFFERING such nice targets. It's STUPID to assume such, so it's stupid to "think" you are going to be doing much, if ANY "long range" shooting.