Hornandy is the stuff I was thinking of.
I tried a box out this year, unfortuantely, can't say how it performed on game
I did find it shot about 5" higher at 50 yrds and grouped much tighter in my Marlin than the 170gr Coreloks. One group was actually in a 1" size, with a keyhole involved. I liked the way it shot, just never got a chance to try a live action.