[rsilvers]

It may negatively effect accuracy that you cannot set up a load to contact the lands, but we did not want the lands to be jammed if someone loaded a 220 or 240 Sierra MatchKing to full magazine length and got stuck bullets. So the lands ended up where they are based on the fact that the SAAMI max OAL is 2.26 inches, and people would be loading Sierra bullets. Military levels of reliability was the most important criteria (I personally got a stuck bullet in a 300 Fireball barrel), and the boost in supersonic velocity was a nice plus.