I now use the 7mmstw's for deer,pronghorn and bighorn and the 140gr ballistic tips have worked fine for those animals.When I hunted elk and moose with the 7mmstw's I used 140gr partitions and they did a great job.I haven't tried the new accubonds in my stw's and heavier bullets do not shoot nearly as well in my rifles.I now use my 300ultramags firing the 180gr ballistic tip for moose and elk and after 8 elk and 2 moose the results have been very good.I do not have brakes on any of my rifles.If the rifle is not comfortable to shoot,I change stocks,recoil pads or get rid of the gun as I won't hunt with earplugs in place and a single shot from a braked rifle without hearing protection can cause permanent hearing damage.