Did any of you catch the episode of Myth Busters where they shoot several guns into the water at a balistics gel cube to see how far the bullets would travel through the water?

They shot a Muzzle loader, AR-15 in 223, a Garand, and 50 cal BMG.

They shot into the water at a 20 something degree angle.

The muzzle loader had the deepest penetration. The AR-15, Garand and even the 50 Cal BMG could not hit the Gel at two feet below the surface. The bullets fragmented and fell to the bottom of the pool.

Can anyone add to this? Is there a type of bullet that would reach down into the water?

I know they claimed that in the AR-15 that they were using FMJ's. Would something else have worked better?

Tom