Excellent Test, and well presented!! Not being familiar with the design and construction of Hammer Bullets, (as I am primarily a White Tail Deer hunter), I tend to ignore super tough bullets, unless prepping for an occasional Elk Hunt. I have been VERY pleased with the excellent results of the 130 Grn Nosler Ballistic Tip bullet, used in my .270 Win. hand loads ., at 3050 FPS , on Deer at 100 to 130 yards . For my next elk hunt , using a .300 Weatherby Mag , I will try your 165 Grn. Hammer Bullets . Thank you for this excellent study!!