Thanks guys, I figured that the initial muzzel velocity would be somewhat faster than 1670 fps shooting 90g T7. Looks like I will have to experiment with some 95 and 100g loads and see if the groups open up. I've never tried over 90g T7 - just seemed like I didn't need to considering the groups I shoot average 2" - Looks like I need to go back to the range for about half a day and play around.