sylvan, on your reply that an arrow is a sharper than a .357 that is true.
lets say we load those bullets with a full metal jacket and load them backwards.[:-] we would see them then still not as sharp as the arrow, but shoot though the bag. why? because of the transfer of energy is not to explode, but a driving force though the bag.
heres is the reason i will never use any type of arrows but carbon
they have a good drive on impact not the soft bend other types have. but that is just me