Performing a reload while physically moving between shooting positions. The goal is to use the movement time — which is otherwise dead time — to complete the reload so the shooter is ready to fire immediately upon arriving at the next position. This is one of the key "free time" skills — converting dead time into productive time is a major separator between competitive classes.
Reload on the move is the combination of standing-reload mechanics and shooting-on-move body control. It connects to position-entry because the reload must be complete before arriving. Connected to stage-planning because the decision of where to reload (during which movement) is a planning skill. Connected to short-moves for shorter transitions where there is less time to complete the reload.