I like the 7/8 oz load & have used it a lot in pest control.
I found by mixing half/half #3 shot & #7 1/2 shot that it is a very effective load at about 1150 fps.
Shot from an I Hollis & sons 12 g. originally 2 1/2 chambered hammer gun with 32" barrels choked full & stupid.
Someone before me had the chambers re cut to 2 3/4.
I Like to keep the stresses down on that gun.
O.M