Bolt Fluting for Remington 700P

[PGW Steve]

Main reason for spiral fluting is for field guns; the spiral flutes give a place for the dirt and mud to be pushed into rather then gumming up the action and causing a jam. Means a lot more cleaning when you're done though, since you have to deal with the dirt stuck in there. But if your job (and your life) depends on your rifle functioning then the added hassle and the expense is worth it.

This^

Kind of a self cleaning system with built in gutters for dirt and debris. Getting a .020" diameter grit of sand jammed in somewhere with .005" clearance is bad. Giving it .050" of space to get pushed into right away is good to go.