I recently worked up some lead free loads for my Thompson/Center Encore Pro Hunter in 7mm Rem Mag. I used 150gr Nosler E-tip with 64 gr of RE-22 behind it. It produces about 1" to 1 1/4 groups at 110 yrds. Just fine for hunting but im a bit obsessed with accuracy so I asked a guy next to me if he knew much about loading for lead free. He told me that the best thing to do was to shoot lighter bullets. He went on to say that if I dropped down to a 139 or 140 gr bullet that my groups would be under 1/2". He also went on to tell me that they would produce much better kills on deer and larger sized game because the bullet would be moving much faster and therefore it would shrapnel more on impact instead of the heavier ones just punching right through. Any of you guys have any input on this?