What size pellet does a 130 Benjamin pistol use?

the Benjamin model 130 doesn't use a pellet it was designed for a .175 caliberBB.

The 130 line of rifles came in 3 sizes. the 130 fired a BB, the 132 fired a .22 caliber pellet and the 137 fired a .177 caliber pellet. they were made between 1946 to 1985