Yes,They are drive banded also known as a bore rider, sir. Evidently you have never tested the GS against the others over a chrony. Here is another for you,sir. I will send tenhunter a GS Custom and you send him a Barnes for his 30-378. He can take a wooden dowel after he starts the bullet in the bore,and drive it through with the dowel and a wooden mallet. Then he can do the same with your almighty Barnes and when it hangs in his barrel. You pay for the removal, better yet put one of your own rifles up for the test. Then tell me how much the same they are. I have shot loads in my 7stw with 80grs. of powder. with a 140gr GS and a 120gr Barnes over the chrony and the 140 GS is faster,due to less friction, and thats 20gr more bullet, sir..............now thats my $1.00 worth on that one.........Do some research...........AND TESTING>......