Questers Satirius Satirian 7x44mm ammunition. Cartridge, 7mm Ball, M55 : A generic 145-grain ball cartridge. White cap. Cartridge, 7mm Ball, Tracer, M55A1 : A generic tracer conversion. White cap with one red band on the case. Cartridge, 7mm Ball, Tracer, M55A2 : Alternate-color tracer to warn of an imminent magazine change.