Partitions and solid bullets like Barnes are designed with different objectives in mind. As stated, Patitions (and Accubonds) are designed to fragment and lose weight inside the animal. Barnes bullets are designed to retain nearly all their weight. Which works better is a topic of constant debate. Under 95% of all circumstances, both designs work well. I've used both, and the steaks were just as good from one elk as the other. I prefer Barnes now. I've butched some of my own elk, and finding lead scrapnel paths in the meat just doesn't sit well with me. I know that a Barnes will nearly always exit and create a secondary blood trail. The Noslers don't always. Once the front of the partition shreds away the base can be pretty small. If it doesn't hit anything solid it plows on through, but it is more likely to remain inside against the far side skin. I tend to believe the Noslers may kill just a bit quicker because of the shrapnel, but the Barnes leaves a more reliable trail to follow if the animal doesn't go down right away.