Magnetic recording medium and cartridge

A magnetic recording medium, the magnetic recording medium sequentially comprising a base, an underlayer, and a magnetic layer,

• wherein the magnetic layer includes magnetic particles, first particles, and second particles having a Mohs hardness of 7.0 or more,
• the magnetic layer has a concavoconvex shape on a magnetic surface,
• the concavoconvex shape includes a first protrusion including the first particles and a second protrusion including the second particles,
• a ratio H1/H2 of an average height H1 of the first protrusion and an average height H2 of the second protrusion satisfies H1/H2≤2.3,
• a height range ΔH obtained from statistical information on a height of the concavoconvex shape satisfies 3.00 nm≤ΔH≤6.00 nm,
• a gradient range ΔA obtained from statistical information on a gradient of the concavoconvex shape satisfies 4.00 degrees≤ΔA≤9.00 degrees,
• the first particles include carbon-containing particles,
• the second particles include non-magnetic particles, and
• the magnetic recording medium is tape-shaped.