Deker what do you mean by a Canada? is it a goose? well I think the HMR is a far better round than the WMR. the .17 has 3" less drop at 150 yards and nearly 10" less drop at 200 yards it also has 3" less wind drift at 100 yards, 7" less drift at 150 yards and 12" less at 200. it also retains more FTLBs from 100 yards to 200 yards. as for using the HMR as a rabbit gun and the WMR for fox I would use them the other way round not that anyone is doing that.