Looking at the ballistics of the 460 Rowland, I wonder about several aspects. The recoil is obviously going to be substantial, so I wonder about the longevity of a standard, even good quality frame to handle the battering it will take with such heavy loads, even with a stronger recoil spring and buffer. looking at the bullet weights vs velocity, it seems that the power is one step below the .44 mag and that the standard heavy loading is a 230 gr. bullet. Since the fairly recent hard cast wide flat nose bullets currently used in revolvers are the "ticket" for bear defense loads and even hunting loads in heavy caliber revolvers, could a 1911 be made to reliably feed such bullets, if cast at a proper weight for this cartridge, the lighter weights reducing the probability of full penetration. Understand, this is not a criticism of the cartridge, just an old handloaders curiosity.