The 70% applies to AB's of .30 caliber and under, but will vary about 5% on either side of that.
Like bigger Partitions, most AccuBonds above .30 caliber are designed to retain a higher percentage of weight. The bigger recovered AccuBonds I have in my collection range from the 225-grain .338 to the 260-grain .375, and average 79% weight retention. The highest is 81%, a 250-grain 9.3mm recovered from an angling-away shot on a grizzly. The bullet entered the rear of the rib cage and was found under the neck skin on the far side.
