no, it cant turn 360 degree, imagine laying down holding the rifle, a swivel will allow movent from say the 10 o clock postion to 2 o clock, if you drew a straight line down, from top of rifle to bottom
a fixed bipod, imaging again, laying down, aiming and your slightly out of line with the target, you adjust postion, one leg of the bipod would raise off the floor, bit hard to explain, someone else may explain in better