cutting edge

Hello all. My .270 Win is listed as a 1-10" twist, but it shoots lighter bullets better. 130 grain bullets (Nosler Accubonds, Federal Fusion, etc) will group between 1.5" and 1.75" at 100 yards, while 120 grain Norma Kalaharis will group sub 1" regularly. I'm looking at using Cutting Edge...

Anyone looked at those things? The front supposed to peel back and break off (sending shrapnel in a star pattern), but the base keeps going. I know in pistols, they test horribly, poor penetration. I just can't see it going any better with a rifle. So, what other "snake oil" bullets have you...