I agree with Ridge Runner. You might be able to make moose hunting a long range affair, but I thought they lived in the thick stuff.
You need penetration. A Berger bullet is designed for Ballistic Coefficient. They are made to be able to open up at long range.
I think a Berger would do the job. Any bullet will kill if you put it through the ribs. But I think it is the wrong tool for the job. You can pound nails with a crescent wrench.
An accubond, triple shock, grand slam, partition, or similar would be a better choice.