Dude you are associated with the forum for almost 3 years now, and you are giving this ****. To carry 300kg warhead, do you have any idea how much structural weight is required, let alone be the fuel weight. And that too travel distance of 240km and that too at supersonic speed.
For the above specification to be true, it has to be in the weight class of Brahmos. And I assume Russians are miles ahead of China in designing anti-ship missiles. Thus if you compared it to a little old Russian technology,
P-270 comes close to its technology. So according to that logic, it should weigh close to 4.5 ton impossible to be carried by a aircraft.
Second option is kh-35 latest generation missile
. To carry 145 kg warhead, its weight is 610kg with just 130 km range and traveling at only
Mach 0.8 So if it is
to carry 300kg warhead,its weight has to be 1200kg and make that a little more than twice,
if it is to travel at supersonic speed i.e. 2.8t-3t. What more or less is the specification of Brahmos.