riceboy72
Your test with the 9mm.WW.Whitebox 147 JHP, looks like the results I got with my own milk jug test ! When I compared the UMC 100pack of 115 Grain JHP. from Wallyworld, to the WW ,also from Wally ,the UMC 115 JHP nearly always had jacket and core separation! But the 147 WW JHP showed better penetration and stayed intact with good expansion ,in spite of the lower velocity.