It's worth noting here that there's some confusion about the "tons" marks. Although we tend to refer to X tons "proof", the tons refers to service pressure, not proof pressure.

It would appear, at least from the fairly extensive list of Eley loads I find in their "Shooter's Diary", that there are no longer any 2 1/2" shells loaded with loads as heavy as 1 1/4 oz. In the list I have, Eley offers over a dozen different Game or Long Range Heavy Loads. With the exception of the 1 3/16 oz Maximum, all the others contain from 1 to 1 1/8 oz shot charges.