Just my luck I went back and the IRM 7828 was gone. I still not sure why H4350 is the preferred powder over IMR 4350 the burn rates are so close. I am not complaining about my load however. As I stated I am shooting right at 2900 , just a hair under, and shooting high 3s to low 4s. I tried the IMR 4831 and got the speed up to where I want but my groups opened up to almost 2 MOA. Not sure if that was brass or bullet or both. Again like I said I was using resized 243 brass so I had at least 4 reloadings on it and the primer pockets were giving up. I may try the 4831 again now that I have Lapua brass.