475 Bishop Short Magnum vs 12 Gallons of Water

What would happen if we fired the largest and most powerful cartridge that can fit through the star chamber of a DPMS-pattern (LR-208) AR 10 into 12 gallons of water? Would that be enough to stop the solid copper hollow point bullet? #guns #rifle #475bsm #bishop #water #rangetest #detonation #cuttingedgebullets