I read some were that barnes recommends a bigger jump to the lands I think it was in the December Reloader magazine there is an article on reloading .308 and the auther states that he was not getting the groups he thought he should and he gives the bullet jump that barnes recommended he use .I dont remember exactly but it seems like .030 was the closest. I just started playing with a load that I started at .065 from the lands and hade two differnet powder charges that shot right at one inch.