Yep, I usually shoot them 400 and out...never an issue. Most people have no clue and don't believe me. I just say ok....keep laying out 100's-1000's on fancy steel I go have coffee a donut and find out where the big bucks are sprouting horns. LOL They run em almost to the hub anymore.I'm a farmer and use old worn disc blades mostly at distance. Never a dent. My buddies 6.5-300 Weatherby mag cut a hole through a 1/2" mild steel plate like a victor torch without dimpling at 400 yards. The 1/2" AR500 and old disc blades didn't have a dent at the same distance. The concavity helps direct some energy away just as theseReelamin's pictures depict.
I use 1/2" AR500 from 100 on out and for 300-400 and beyond... free used disc blades work great!!