Interesting...never heard of a 100% pure lead conical fragmenting at any muzzleloader velocity...be about like saying that 100% pure lead round balls would fragment.

100% lead conicals and balls will flatten, expand, collapse, deform, etc, etc, but I've never heard about or seen any that had fragmented at puny little muzzleloader velocities...I personally drive 100% lead TC Maxi-HUnters around 1700 fps, and lead balls over 2000 fps, they're devastating on deer, and if still in the deer to be recovered, they've always been intact for me