We don't know if we are using or not using actually. Except for casualties, no news can be trusted. Especially those related to the armaments in use there.
IMO, they are being used. Otherwise the losses on the Indian side would have been much higher. I think it works like this -
i. Pak snipers position themselves to take out Indian observer posts or night patrols. This is done to allow reinforcements of arms, men etc into JnK.
ii. When spotted, Indian artillery opens up (leading to death of civvies and Rangers etc)
iii. In response, Pak artillery fires back to suppress the former.
The cycle continues. (i, ii, iii, i, ii, iii, i, ii, iii...)