Oops they are 293g not 296

Daryl you are correct, and you may possibly have the TUG. I just looked on the Brenneke website and found they have three 9.3 bullets. The silver jacked 293 TUG, a copper jacketed 247 TOG and a green coloured pure copper 225g TAG

I am not sure how well they would do at the lower velocities out of your x57 due to the steel jacket. I see the bullet is loaded in the x74 ammo so maybe that steel jacket is very thin. I don't know.