I had a .375 Weatherby H&H, which I bought when expected to go bear hunting in Alaska. Took down to the farm and sighted it in, by the third shot, 3 game wardens showed up wanting to know, what I was hunting...elephants.
Two years ago, a man in Carlsbad had a Rigby for sale and I almost bought it, just to say I had an elephant gun.
If you really know what you’re doing, a .303 Enfield is an “elephant gun”.
I make no claims to “really know what I’m doing”.