LaOtto, yep, that is the grid size and we did have wind, but I still think it was me. I also shot my 30-30 and an old Savage 99 in 303..... the 303 grouped better than this. I have loaded up another batch, hopefully I'll try them the next nice day we get.
cwlongshot, I'm not real happy about compressed loads either, this is not compressed a lot and like you say, it isn't as fast as other loadings. I did try heavier loads w/ more compression but they didn't shoot as well. I guess I'd go back to 4227 or H110 for hunting loads, but this punches paper ok and the powder was just sitting there begging to get used...........