Wouldn't steel targets be safer for the shooter if they were convex instead of flat? Just asking. Larry
Even Ar500 steel pistol targets may end up "cupped", if not rotated on regular basis. Especially if heavier pistol rounds are used on them. By cupped am meaning the previous flat surface facing the shooter is confex. Now if you shoot at a convex target , and hit at the top of the target, the angle may throw the rebonding projectile upward, instead of down. If you shoot at a concave surface, the bottom half of the target is facing up.
If the op is related "cratered" to pock marked, pock marked targets are very dangerous as they can send projectiles right back at you. This is why regular soft steel targets can get dangerous relatively quickly. Even if they are "hung".