Used to be the Nosler Partition was near the top of the heap for designer bullets. Slowly, I hear them suggested less and less for big game hunting. For awhile you would read reports about Partitions losing their front portion and not penetrating as well as in the old days. Now itís all about Barnes coppers slugs that occasionally act as solids and donít expand at all. I like leaded bullets but want 95% weight retention. What say you?