I've noticed from some posts here and on other boards that many of you zero your rifles for 100 yds. Why? I know you adjust the scopes to whatever range, etc, but wouldn't even 1" or 1.5" high at 100 simply mean you need no adjustment out to 300 or so (depending on your rifle) and "fewer clicks required" at longer ranges? Is there any specific reason you guys don't do this? I'm wondering because whatever load I end up with in the 300 RUM should be flat shooting enough for a 300 yd zero without having to worry about excessive mid-range trajectory. 400 yds will only be 6 or 7 clicks away, etc. Is there something I'm missing here? Thanks.