Abstract: Disclosed is a device for sensing the powder level within a cartridge shell during the reloading process comprising a housing having a ramp in its interior, a sleeve slidably inserted within the housing having a radial hole initially positioned below the ramp in which resides a ball, and a plunger inserted within the sleeve having a groove for receipt of the ball. A probe is mounted on the lower end of the plunger which contacts the powder deposited in the cartridge shell, wherein the probe lifts the plunger so that the groove in the plunger may receive the ball upon the presence of a proper amount of powder so the sleeve can slide upward into the housing allowing the cartridge to enter the housing. Preferably, the powder level sensing device is adapted to be mounted onto existing reloading press frames, particularly the progressive reloading press frame. Also disclosed is a method for adjusting the powder level sensing device to accommodate various cartridge shells and desired powder levels.