Re: Any wildcat rounds based on a .50BMG?
460 Steyr is a 458 dia bullet in a 50 BMG as I understand it.
The 50 DTC is a 50 BMG imp essentially, it's a bit shorter but the new body angle (reduced) and improved shoulder angle help with the powder capacity and capabilities of the round.
416 Barret was mentioned above, I thought at one point that a 408-50 BMG would be pretty nifty, I wouldn't want to go smaller than 375-50BMG because of the cost of barrels.