I have two 7mmstw's and a 7mmultramag and have owned several 7mmremmags.For the average shooter the 7mmremmag is by far the best choice.The stw and ultramag only offer an advantage when the shot distance increases to 400 yards or more and then only if you have the shooting skills to accurately place bullets at those ranges.In other words if you have access to a range of 400 to 500yards and are willing to shoot at least several hundred rounds per year practising at longer distances.