SDGW lists some 3000 RFA/RHA/RGA officers and a correspondingly large number of ORs. I don`t know whether this number is large as a percentage compared with infantry regiments but it does show how dangerous artillery service was. I assume that the major danger was from counter battery fire (or possibly accidents) - were there other major dangers? Assuming that the RGA were further back, did they run less risk from counter fire or did the calibre of their guns make them a preferred target?

Source: Counter Battery Fire