“120mm guns were introduced that made the Sherman the equal of a Tiger 1.”
The Brits up-gunned their Shermans with 76.2mm guns to create the “Firefly” which with better ammo could take out a Tiger II at 1000+ yards.
There were SPGs and Tank Destroyer variants with 90mm, 105mm and 155mm guns, but no WWII production Sherman ever had a 120mm gun to my knowledge and brief internet search. What various armies around the world did with Shermans after the war I cannot be held responsible for.
If you can point me to some info I have missed I will stand corrected.
Dooh. I misremembered the legend on a slide I have in class. Yes, 90 mm. Do you know what year those came in?
The Israelis got up to 105mm in the 60s, and that's probably the limit of what was possible