A 150g, .270 win round will drop a large bull moose like a ton of bricks!!
Well, I'm not sure many moose have ever dropped "like a ton of bricks".
Most I have seen seem to think about it a bit before they lie down, no matter what they are shot with. Way too often, for me at least, they manage to walk off a bit into something really ugly before they lie down. Looking forward to the next one that drops "like a ton of bricks" when I use the .270 again. It is, by the way, a perfectly useful moose round.