i've used the 140 gr hornady btsp for over 20 years and see no reason to change. never had one fail . shot deer from 20 yards to nearly 700. (really, it's a long story) what i like about the hornady is that it hardly ever shoots through, expending all energy inside the animal. even the 20 yarder didn't come out. flattened out like a quarter under the skin on the off side. i've never liked bonded or partition bullets. not even for elk. main thing is the price. noslers are about 4x hornadys. 2nd reason is that they don't seem to do near the damage. bullet doesn't open up as much and it just goes through em. kills em ok. i've seen the same thing with the solid copper bullets like barnes. plus you can't load the copper bullets near as hot. but i'm a strict lung shot guy. if you're a chronic butt shooter or like to crush their shoulder, then the less expanding bullet might be what you want. i use the same style bullet (btsp) in 165 gr. in my 300 and wouldn't change it either. if i was gonna hunt coastal bears or maybe alaska moose, i might use a partition bullet, but i dang sure wouldn't be using my .270 for the bear!