As far as I can tell, during the war The Sea Harriers only dropped 1000lb bombs, as that was the only size carried aboard the task force. A sensible move, as 500lb bombs take up almost as much space aboard ship but pack less of a punch. Also when the initial attacks were launched, all the Sea Harriers were armed as in the above photo with three bombs and two drop tanks (the latter were virtually permanent fixtures throughout the Sea Harrier's life, range always being an issue) so only three hardpoints were generally available for stores. After the first attack the SHARs returned to their carriers and were quickly rearmed with Sidewinders ready to meet the expected Argentine response. Many missions flown after that had a mixed armament, with two sidewinders for CAP duties and a single 1000lb'er on the centreline pylon, to drop on Argentine positions before proceeding to the CAP station.
Interesting again i have see after max 1000 lbs bombs same for Argentinians 500 or 1000 lbs max.
An interesting things also during operations CAPs of 4 Sea Harrriers for cover CVBG and also 4 for Amphibious TF, IIRC many links not easy hehe can fly 1 h 30.
I try catch more infos for Argentinians more difficult with Spanish... but really an interesting War and i will detailed more the 2 main phases, naval battle around Falklands 01 - 05/05 and San Carlos Landing mainly provide if i can things little known.