Have you ever done the math on how much you would save if you hand loaded HEVI SHOT? I've thought about reloading just to see if I could save this way and maybe shoot it more for ducks and not just geese but wasn't sure if it would make a big difference.
Shot is the most expensive component in any shell so it depends on how well you do on buying it. I have 1-5/8 oz loads of Hevi-#2 that cost me $1.48 a round. I also have 1-1/4 oz of HW13-#6 that cost 2.00 a pop. Those are assembled prices including wads, powder and primers.
For balls out, heaviest heavy shot, I have some 1-3/8 oz loads of TSS18-#6 that cost $4.99 ea to assemble. One round fired in the field, one out of state waterfowl tag punched.
Where the heavy weight stuff really shines is in the small bores. Makes the 20/28 gauge a killer and the price per round is reasonable. 28 gauge, 1 oz of HW13 comes in at about 1.50 a pop.
Sorry for the thread jack. Your T's will kill as far out as you can hit them. Whichever choke you screw in, you'll run out of pattern long before you run out of penetration.