Depends on what you want to do Ahmed.
Could only see the 28 as a pigeon or rabbit gun - not that it couldn't take ducks but getting ammo for the 28 would be hard unless you bought a stack of it & stored it away in a bunker!
Never seen or heard about a gun nor ammo of its type, not to say there could be any about!
The 9.3x74 are common as chips, would make a great stalker for big pigs at a water hole!