I have killed 4
2 with a 375H&H. One with a 300 grain Sierra at long range . One with 2 Speer 285 Gr Grand Slams. Both acted un-hit for a few seconds and then fell. One (the 300 grain hit) moved about 30 yards. The other hit with the 285 grain bullets moved about 10 feet before falling. Found the Sierra jacket but the core exited. Both Speer's exited and as far as I can tell neither expanded at all. One hit a rib as it exited and the hole was round in the rib bone, which was not even broken off.

One with a 348 Winchester. Moose flinched and moved behind a patch of alders I moved about 30 yards up a hill to get a 2nd shot. Before I could fire again it fell dead. Bullet was a 200 grain Hornady. Found against the skin of the off side. Perfect mushroom.

One with a 62 cal flintlock with a Wheel Weight cast round ball, and 140 grains of 3F powder. Bull fell at the shot and never took a step. Fastest kill of the 4, by far!