Magnetic tape and magnetic tape device

A magnetic tape device comprising:

• a magnetic tape;
• a magnetic head;
• and
• a servo head, wherein
• the magnetic tape is a magnetic tape comprising:
• a non-magnetic support;
• a magnetic layer including ferromagnetic powder formed on the non-magnetic support,
• wherein the magnetic layer includes a timing-based servo pattern,
• the ferromagnetic powder is ferromagnetic hexagonal ferrite powder having an activation volume equal to or smaller than 1,600 nm3, and
• an edge shape of the timing-based servo pattern specified by a magnetic force microscope observation is a shape in which a difference, l99.9−l0.1, between a value l99.9 of a cumulative frequency function of 99.9% of a position deviation width from an ideal shape in a longitudinal direction of the magnetic tape and a value l0.1 of the cumulative frequency function of 0.1% is equal to or smaller than 180 nm.