The 700 extractor is really bad to shave brass off of the cartridge. The brass shavings can get inside your bolt and jam it. I've been to a couple schools and have seen this happen. I personally just make it a point to keep it clean and have never experienced a problem.
I know some experienced people who remove the Remington extactor and have a Sako type installed.
Hope this helps.
Blessed are the peacemakers: for they shall be called the children of God. Matthew 5:9