Yeah scalloped hammerheads don't get much bigger than that. I'm not sure what the record scalloped hammerhead is but I'm sure everyone saw the record great hammerhead a couple years back( 1280 pounds, a little over 14 feet in length). I don't see any sense in killing a big hammerhead though. For one, a big hammerhead eats a lot of stingrays and I'm sure everyone hates those damn things and two, I ate it once and wasn't too impressed so I say let them go and take the blacktips and makos for the table.