In a totally un-scientific manner,we once tested those types of rounds at the range,and found the rounds with cut nails went EVERYWHERE! At 25yds you were darn lucky to hit a sillouette of a man! And the cut bullets did nothing until cut almost all the way through,then you had 4 tiny pieces of lead hitting nothing,unless you were VERY unlucky!
So MY guess is,they were left as "propaganda" or scare tactic's. After "testing",I'd rather my enemy use them! Again totally un-scientific!
I also wonder if our assessment of him is beacause he's not a Skinner? He's WAY to condescending in his presentation and being a bag maker, THAT BAG HAS GOT TO GO!!!!!! Are ya with me Beaverman!