This is largely, but not strictly, true. It's worth remembering that field artillery was in use in many battles prior to this period, and, in fact, had been a m

This is largely, but not strictly, true. It's worth remembering that field artillery was in use in many battles prior to this period, and, in fact, had been a major component of the ability of the British government to put down the Jacobites earlier in the 18th century, in the form of movable mortars. (Rebels did have access to some fields guns, but they weren't as useful in the terrain of Scotland, where the high angle of fire of a mortar was particularly valuable.)