HP, for some styles of hunting, that 125 BT will work just fine. For stand hunting, where exact bullet placement is a given, I would not feel uncomfortable with it.
On the other hand, when chasing elk on public land, shooting is almost always hurried, from field positions, and at the angle presented, rather than the ideal broadside.
In those situations, that 125 Btip will just not get the job done consistently, where an equivalent x-bullet will. It will penetrate paunch or bone and keep going.
I assume everyone here has reviewed Harald's treatise on bullet performance (
http://www.rathcoombe.net/sci-tech/b.../wounding.html). His experiments, and the experiments by Gary Sciuzietti (sp) that Denton mentioned have convinced me that a fast projectile, fired at a high rate of spin (for the bullet length) will produce the straightest, longest, most uniform wound channels.
In the end, when hunting my goal is to bring home meat constently and humanely. The light for caliber copper bullets may not kill as quickly as a BT to the ribcage, but they will put the animal down quickly, with a blood trail sufficient to guarantee recovery. FWIW, Dutch.