ECU Pirates
.308 Win
Are you now comparing the .38 long colt to the .45 acp? The .38 long colt is lighter and slower than the .45 acp. Energy does count. The .38 long colt can't even dent a frying pan.You do realize that a .38 FMJ will put a hole through a body on both sides at a minimum of .357 in diameter while a .45 FMJ will put a hole thorough both sides of a body at a minimum of .450 in diameter.
One millimeter larger isn't going to make a difference.
It is a wives tale that has been repeated throughout the years. There is scientific evidence that proves that.