Ok here we go again As some of you know I am building a 375 H&H the barrel is on order from Lilja. Now here is the question I talked with Dan Lilja and told him what bullet weights I would be shooting and asked what kind of twist and grove he recommends for a 375 H&H. This is what he said a 6 grove with a 12 twist. Now I talked to my smith last night and told him the barrel should be on the way. He asked what kind of twist and grove I have and I told him 12 twist with a 6 grove. Then he asked what bullets I was going to shoot and I said the 260gr, 270gr, and the 300gr bullets. Then he said I probably should have went with the 10 twist if I was going to shoot the 270gr & 300gr bullets. Now here is the question will a 12 twist work with what I want to shoot?