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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
In tandem cartridge , the number of bullets fired are : -
assistant
The correct answer is  Duplex or tandem cartridge
Duplex or tandem cartridge this is used in military rifles and contains two bullets which enter the target at different points, seprated by as much as 30 cm.
The base of the forward bullet is notched , into which the second bullet fits closely.