Judging from the testing done last summer, the Lehigh Controlled Fracturing Bullet may not work good on trees. Tests done with carpet faced plywood placed in front of water jugs, indicate the petals did not fracture until they encountered the water. The bullets appeared to pass right through the carpet and plywood, before they started the fracturing process. This seemed to occur using both the 50 grain powder loads, and the 80 grain loads.