When we started ML we all bought bighorns, and were taken in by the magnum 150 grain loads. But the first time up shooting we noticed flamage out the end of the barrel, and alot of wasted unburned powder. And reduced accuracy.
We cut down to 110 grains of powder and went up to 310 bullets, we started with the 265s. A whole lot better now.
But the animals hit with a ML do not leave much of a blood trail.