rotund sedge
Small game, would consist of everything in classes one and two
Medium game, would consist of classes 3-6
Heavy game, classes 7-8
Dangerous game, class 9 (with brown/grizzly bears and salties)
It's a "throw it and see if it sticks idea" but it would demand more realistic balistics. Guns don't fit into categories like the devs are trying to force them too, they are designed to handle a wide variety of animals and do it well, the guns in game are the opposite of that. ( consider that .44 lever action being able to reach 300 yards AND kill an elk, that is atrocius)
Consider a 9.3x62mm rifle, designed in 1905, to be used in converted military bolt actions to allow German settlers a solid rifle for Africa's food chain. It turned out equally well suited to taking down driven boars in the black forest and the Black Death out of a farmer's crops in Africa) It's still popular across Europe for boars and red stags, in Australia for Sambar deer, and Africa as the go to medium gun that can put antelope meat on the table and stop a cape buffalo or a lion.
It has been, literally, written in the lawbooks in several countries as an exception to the minimum caliber of .375 for dangerous game. (It's technically a .366 caliber bullet, a medium between the thirty caliber rounds and heavier forty calibers. meaning it's really good for a lot of game animals between impala/whitetails up to elk/moose, and a proven performer on cape buffalo, lion, and even elephants)
lunar flume