The R700 is a series of hunting rifles manufactured by Remington Arms. All are centerfire bolt-action rifles. Both the M24 and M40 are based on the R700.
Usage in Call of Duty[]
The R700 appears in CoD 4. It appears in the single player level "The Sins of the Father." In multiplayer it is unlocked at level 34 and has a four round magazine along with high damage and medium recoil. It is very similiar to the M40A3 in terms of damage, speed of aiming, and recoil.