Israeli Commando Brigade switching from the Tavor to M4s

[BehindBlueI's]

I hear this a lot, and have no reason to doubt it. On the other hand, I’ve seen a 5.56 rip through a USPSA popper like butter, while even the hottest 10mms barely leave a scratch. And this is with standard 55g FMJ, not the steel core stuff. Is LE using something different?

Well, that's where the "with proper ammo selection" comes in to play. We use a jacketed soft point 55gr bullet.

[Bucky]

There may be some agencies using 55 grain FMJ on duty but it is not recommended.

Normally some form of bonded soft point or hollow point. For those who can afford it, all copper hollow points.

When you start looking at rifle plates you see 55 grain FMJ / M193 is one of the hardest rounds to stop in hard mediums, especially from a 20” barrel due to the velocity. However in softer mediums the same round becomes unstable and penetrates less than Pistol bullets.

With rifle armor, there are plates which will stop the green tip steel core rounds which will not stop M193.

Thanks for the explanation.

[TiroFijo]

There may be some agencies using 55 grain FMJ on duty but it is not recommended.

Normally some form of bonded soft point or hollow point. For those who can afford it, all copper hollow points.

When you start looking at rifle plates you see 55 grain FMJ / M193 is one of the hardest rounds to stop in hard mediums, especially from a 20” barrel due to the velocity. However in softer mediums the same round becomes unstable and penetrates less than Pistol bullets.

With rifle armor, there are plates which will stop the green tip steel core rounds which will not stop M193.

True! When you are dealing with steel, velocity is king for penetration... even lightweight, soft point bullets will penetrate hardened steel, or leave massive craters, given enough velocity.