LS, I think whot you are dealing w/is that the 7/8oz. loads are likely really more like 24gram Bunker rounds loaded to somewhere N of 1300 fps vs. the F2 comp 28gram loads that are really quite mild to shoot. If you cut one ea. apart I think you will also see they are loaded w/two dif. powders.

FWIW, I purchased some Italian 'Centurion' 3/4oz 12ga. rounds that stated they were 1425fps on the box and found them right 'snappy'. Abrupt by any def. & they felt to me like they had more recoil than most 32gram target loads!