On 14 Oct 2005 09:50:22 -0700, bremen68 wrote:

They make great reactive targets.....Fill em with water and the
kinetic's demonstration of a large calliber bullet hitting them can be
rather spectacular. Depending if you enjoy that sort of thing.
Shotguns make a pretty good show too.

Target area gets pretty muddy after not too many, though. Metal paint
cans full of water are fun - large and slow projectiles launch the lid
pretty well, column of water, lots of fun.