A turret system for use with a firearm scope is provided, wherein the turret system comprises a plurality of turrets connected in an interlocked and telescoping orientation. The system may include a first turret having a hollow body and a second turret that may be at least partially received within the hollow body of the first turret. The first turret can be selectively axially movable relative to the second turret such that the second turret may be at least partially exposed when the first turret is in a raised position and the second turret may be substantially covered when the first turret is in a lowered position. The first turret may include a first set of calibration data thereon tailored to a first set of shooting conditions and the second turret may include a second set of calibration data thereon tailored to a second set of shooting conditions.