Most Drills are actually idiots, and all the trainers everywhere else make fun of them.
That being said, he was trying to point out something that kind of makes sense:
The 5.56 round has a propensity to tumble aggressively when it hits flesh. The logic of the entire round is that it's moving so fast that it has limited anti-armor capabilities, but when it hits flesh it will tumble and cause damage, making it basically an anti-armor and anti-personnel round. It's propensity to tumble in the body is what causes those massive secondary wound channels.
However, if you give it added anti-armor capabilities (like a tungsten core), and/or make it go faster, it might not slow down: thus preventing it from tumbling, and defeating the entire purpose of having a very high speed round that tumbles on contact.
Most Drills are actually idiots, and all the trainers everywhere else make fun of them.
That being said, he was trying to point out something that kind of makes sense:
The 5.56 round has a propensity to tumble aggressively when it hits flesh. The logic of the entire round is that it's moving so fast that it has limited anti-armor capabilities, but when it hits flesh it will tumble and cause damage, making it basically an anti-armor and anti-personnel round. It's propensity to tumble in the body is what causes those massive secondary wound channels.
However, if you give it added anti-armor capabilities (like a tungsten core), and/or make it go faster, it might not slow down: thus preventing it from tumbling, and defeating the entire purpose of having a very high speed round that tumbles on contact.