Has anyone tried these out? Information needed on accuracy and how effective on game as well as copper fouling the barrel.

I have used them in a 270WBY for the past couple of years. The majority of the deer I have shot have been in the 300-400 yard range so should have comparable impact velocities. All but one have been complete penetration giving 8" to 25" and a nice silver dollar exit. The one that didn't make it out was at 330 yards and hit the big leg bone up in the shoulder shattering the bone and leaving a baseball sized void in the shoulder, reaching, and stopping in one lung. A second shot was required.
Fouling in my rifle is minimal and accuracy is exceptional, and was easily achieved.

Thanks for your reply. What is the vel. of the load you use? I know that Federal Premium loads the 110gr TTSX at 3400 fps. Right now I've been using the 130gr. TSX at 3060 fps.

I am gatting a shade over 3800, but I would expect you shouldn't have much trouble getting 3400 even with a 22 inch barrel if you load.