Agreed, they should not brake up a bad as a HP. The test is do they break apart or shed their copper skin? If they do then they are spending the energy breaking apart not penetrating. Sabotloader showed a test he did on Hornady XTPs and Speer Gold Dots shot into sand. The Hornady shed their jackets and the Gold dots didn't. If these bullets are bonded to the lead inside them, they they will work fine, if however they are just coated over, not bonded then they will tend to break off the copper coating. If the bullet is not "soft lead" then it will also break apart, like PowerBelts, cause the lead is not pure lead, but lead and antimonium mixed, making it brittle, not supple. How is this bullet made in it's core?
Chap Gleason