Complex sentence: This gives the gun a measure of mobility on the battle field--although it takes 2 minutes to go from firing position to travelling position and 1.5 minutes to go from travelling position to firing position.
Split into simpler sentences: This gives the gun a measure of mobility on the battle field--although. It takes 2 minutes to go from firing position to travelling position and 1.5 minutes to go from travelling position to firing position.