colo wolf, I have tried the 160, 175, 185 regular and coated, and the 200 gr x bullets in my 338/06, and typically get 100 yd five shot groups in the 2 - 3 inch range with these bullets. I have tried them with 4895, 4320, h-380, 4064, and H-414. Nothing seems to work. Before they changed the design I was getting five shot groups well under an inch. Now I see groups in the four inch range frequently. The best groups I get are 2". With other bullets the accuracy is fine, running about 1 1/4" with hornady and speer and much better than that with ballistic tips. Thats what I hunt with now, the 338 ballistic tips have a thicker jacket than the smaller calibers, and besides, any 200 gr bullet will work alright on a deer. I have a 280 that will shoot the 140 gr x good, but if you look at that bullet it doesnt have the secant ogive. The only rifle I have that will shoot the secant ogive x bullets is my sons' 3006, and it wont shoot them better than about 1 1/2 ". It frequently gets around 3/4" with other bullets. I have talked to Randy Brooks and he tells me that Im not seating them correctly, he says at least .05 off the riflings is where they need to be, but I have tried every seating depth practical with no noticable difference in my rifle. I would love to use them, the old 175 in my rifle was the best killing bullet I have ever seen on deer, but I just hate to shoot a load that wont group better than six or eight inches at 200 when I can shoot two inch groups with a nosler. As far as performance though, I think the x bullet is the thing! It just pisses me off that they wont shoot as good as they used to. I wish barnes had kept their old machines and offer both styles. They apparently invested a bunch of money in the new disign though and arent about to re-tool. Tell me something to try! I have shot about $600 worth of these things trying to figure out how to get them to shoot in my 338.