I guess I’m in the minority…I’ve never needed an 1 1/4 Oz load for anything with the exception of steel loads for waterfowl. I’ve rarely used 1 1/8 Oz loads. A vast majority of my birds are taken with 1 Oz. loads in 12, 16, 20 bores. I’ve never needed much more velocity over 1200 fps either, with most of the game loads I’m shoot going around 1150 fps. I rarely ever switch loads either. Chuks, pheasants, quail, huns, sharptails, forest grouse all get the same load. Later in a pheasant season, I may switch to #5’s, but not always.
I treat waterfowl differently, but if I’m shooting bismuth, my loads are at 1200 fps & 1 1/8 Oz. Never needed anything more than that.

A limit of sharptails taken with a 12 bore, 6 lb., Churchill XXV using 1 Oz of #6’s at 1150fps. Jumpy birds shot over solid points at 35 & 40 yrds.

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