I'm sure it will kill just fine down at 1,600 but I've never tried it. And yes, thanks for the typo correction from 175 to 178.The 178 ELDX is interesting cause its still got well over 1K lbs KE as it dips below 1800 FPS in my 308. I know velocity is the determining factor in a bullets expansion, but I can't help but wonder if Hornady's ELDX claim "opens down to 1600 fps" is applicable to the 178 ELDX cause its still hitting really hard below 1800 FPS. Dunno.