Final answer:
The maximum number of training dates for an ammunition request to avoid property book accountability is typically six months or less, to ensure proper inventory control and accountability of military resources.
Step-by-step explanation:
The maximum number of training dates that can be on an ammunition request without the ammunition going on the property book is typically six months or less. This allows for effective inventory control and minimizes accountability challenges associated with long-term storage. Training ammunition not used within this timeframe or beyond what is planned for immediate training use must be entered into the property book, becoming a permanent record requiring stringent accountability.