OVERVIEW: The GMTR drill round is a non-explosive training munition designed to replicate the dimensions, weight, and handling characteristics of live ammunition for safe crew training, weapon function testing, and loading drills.

DETAILS: Typically manufactured from inert materials such as steel or aluminum, the GMTR drill round matches the external profile and ballistic properties of standard operational rounds without containing any explosive filler or propellant. It is used extensively in crew qualification exercises, weapon maintenance checks, and simulated loading/unloading procedures to ensure personnel proficiency and equipment reliability under realistic conditions.

ROLE SUMMARY:
Category: Training Ammunition
Primary Use: Safe handling practice, loading drills, weapon system checks
Function: Non-explosive, inert replica of live ammunition
Strong Against: N/A (non-lethal, non-functional)
Weak Against: N/A (non-lethal, non-functional)
Platform: Compatible with designated weapon systems for which live rounds are intended
Integration: Used in training environments and maintenance protocols

SOURCE:
Janes Ammunition Handbook
https://en.wikipedia.org/wiki/Drill_round