Originally Posted by phildenton
Less penetration? How did you come to that conclusion and whats your source/evidence for that?
Not tryin to start a fight here, its just that many tout the 40 as more powerfull than the 9, heavier bullet going faster, wouldnt that equal GREATER penetration? Again i personally would probably class them as similar power class.
the evidence for my statement is as follows take it or leave doesnt matter to me.
i shot a 115 fmj 9mm and a 180gr fmj .40.
the .40 stopped in between the 3rd and 4th 1 inch wood boards
the 9mm stopped in the 6th wood board.
so for my test the 9mm penetrated a good 2 more inches than the .40.
also for the same target after 4 rapid hits my target fell over with the .40.
the 9 did not make it tip over at all. this was at all shot at a distance of 10 yards.
but i still think either one is a good choice