In my experience Sciroccos expand and penetrate more than InterBonds (which expand VERY widely) but not as deeply as AccuBonds--which penetrate almost as deeply as Partitions. The Scirocco jacket is heavier, but made of pure copper, which is a little softer than the gilding metal jackets on the AB and IB--which is a mild brass (copper with a little zinc) used for most centerfire bullet jackets.
