I used to hunt with a 10 inch 7 TCU and I only used the 120 grain SS pistol bullets from hornady, I was always concerned that the 139 and above bullets would not expand at the TCU short barreled velocities, the 154s will not get out of that barrel very fast, and I belive that hornady recommends those bullets for velocities significantly higher than what you can get in the TCU. 1680, 4198, BLC2 and H322 are good choices.
regards,
Graycg