mudhen,
If you weight the larger recovered AccuBonds in your collection, above .30 caliber, you'll probably find they retain considerably more than 60% of their weight. This is because Nosler assumes the larger-caliber, heavier AB's will be used on heavier game, so designs them to retain more weight. In a previous post on this thread, I listed the AB's that I've seen stay inside animals over the years: Those over .30 caliber averaged 79%.
Nosler has long done the same thing with Partitions, which is why I'm always amused when somebody states Partitions retain 60 or 65% of their weight. The over-.30 Partitions I've recovered from various large animals have retained from 74% to 95% of their weight, averaging around 85%.
