#40Fan - its really not all that surprising. The M16 was designed for one specific thing - killing people. 4" at 100 yards equals about 12" at 300 yards - a full grown man is, what, 16" across the chest. Thats all the military qualifies for, unless you are a sniper, then they get the bolt actions and more accuracy is required. For what it was designed for, the M16 does just fine with 4MOA.

Later,

Marcial