Something I'd read confirmed about .303 ammo

I'd read years ago that to increase lethality, the Brits had started putting an aluminum insert into the nose of the jacket to move the center of balance further back: the bullet remained very stable in flight and accurate, but on hitting a 'soft' target tended to go unstable much more quickly. This was the Mark VII ball.

Just looked at the Box o' Truth for the first time in a while and found this post testing just such ammo, including a couple of pictures. I'd never tried cutting a bullet in half to check the inside, here's the aluminum insert design:


















And, to make it even more interesting, here's a WWII round with a WOOD insert:


















Better than my describing it, go check out his results with this ammo on water jugs. Impressive, to say the least. A few years ago I wound up with several boxes of WWII Brit .303 ammo, I may have to move it up to my 'grab in case of trouble' box.