What elevation is indexed on the M67 sight when doing boresight procedures?

The correct elevation indexed on the M67 sight during boresight procedures is 0800 mils. This setting is essential for ensuring that the mortar is properly aligned for accurate firing. The 0800 mils elevation provides a standardized point of reference from which adjustments can be made for various ranges and conditions during mortar operations.

When conducting boresight procedures, it's crucial that all crew members understand this indexed setting, as it plays a significant role in achieving precision in targeting. Proper indexing helps to minimize errors during firing, ensuring that rounds land on-target. Additionally, familiarization with this elevation allows mortar crews to effectively engage targets without unnecessary delays, thereby enhancing overall operational efficiency.