The headstamp isn't as important to the moose, as it is to you
by Eric in AK
7X57, 7 WSM, 7 Rem Mag
So often, the discussion is around how powerful a gun should be, but how often does a moose hunt fail because the bullet didn't have enough power? Very few instances in my opinion. Statistically insignificant would be the scientific description.
In all reality, the best shot placement on a moose is the double lung, which is not exactly armored by tough hide or big bones. As long as the bullet can destroy ~20 inches of soft tissue after breaking a rib, you have an adequately powerful rifle. After passing that threshold, whatever features that help the shooter's accuracy and confidence matters most.