What is the name of the inert training practice round with a propellant charge?

The inert training practice round with a propellant charge is designated as MK385A1. This round is specifically designed for training purposes, allowing personnel to engage in realistic training scenarios without the risks associated with live ammunition. It contains a propellant charge to simulate the firing and recoil dynamics of actual live rounds, which is crucial for helping trainees develop skills in weapon handling, marksmanship, and situational awareness.

The MK385A1 effectively mimics the characteristics of a live round in terms of weight and handling, enhancing the training value by providing experience that is as close to real-world conditions as possible. This makes it an important tool for preparing Security Forces personnel for their roles while maintaining safety and minimizing risk during training sessions.

The other options, while related to training rounds and munitions, do not specifically denote an inert training practice round with a propellant charge, which is why they do not fit the description provided in the question.