At your speeds the 178 eldx will perform very well. What people are talking about is close up shots with eldx bullets. I personally haven’t had any issues with close shots out of magnum rifles. The 178eldx at your speed and yard will mushroom perfectly and penetrate very well.I’ve looked at Hornady SST and precision hunter they say they are very accurate but have seen a lot of people say there was poor performance in closer ranges, no blood trail and deer walking off etc. Might take a look at ballistic tips as Seuss mentioned. Saw the Remington introduced a newish Remington core lokt tipped