I tried spotting with rifle at first mate. Absolute nightmare, waving gun about, soon gets heavy & runs down battery on your nv scope.
I then got pard19 nv spotter. Easy to handle/carry etc but I was very underwhelmed, didn't feel I was really spotting much. Very grainy.
Made the leap to xm30s and its no comparison to nv spotting, spot on. Save up a bit & go thermal.