So you said this is a new BAR, do you have any loads of your Go-To's through it? I am a AB fan, which I see you have the 140's listed. I would definitely give them a try. I am using a pretty hot load with Varget to mag length in my 7-08 and am reasonably pleased with it. It is just under MOA. I have tried quite a few other powders with the 140 ABs and the Varget seems to be the best powder for them in my gun. I am also playing with the 160s, but really don't have enough data to recommend anything here yet other than it seems promising. Nosler is coming out soon with Accubond 150's for the 7mm and I will definitely give them a try and hopefully get my licorice whip of a barrel on my Mountain 7-08 a good bit under MOA one way or another... I should just be happy with it for what it is, but I like my bolt guns to be a what they should be... Funny thing is it shoots well under MOA at 500 yards, the gun has me pulling my hair out to tell the truth...