[Hectic]

Edit thats strange i quoated a post but it vannished lol.

783 is 5.7 joules.
I wasnt suggesting it is a firearm just because of 500 fps just once you hit 500 it becomes a hassel as they will want to hold for testing and such plus only a lvl2 bolt action user needs/will use on the field 500fps so going above that to import is pointless.
And even at 366 regardless of energy because of the look of it and so on it is considered a firearm but its an "uncontrolled" firearm that puts it into the greyish area as far as firearms are concerned but allows us to import without issue.
But yes you are correct a firearm by definition must meet both 500+fps AND 5.7j + not either or