I just look at it, compare to another unracked round. If it's set back just a bit, I put that one down in the stack, or set it aside for next range trip.
Some ammo seldom sets back, others do so pretty frequently. Also depends on the gun.
Unless it's really pushed back in they are generally ok to shoot at the range.
In Memory of Paul "Dietrich" Stines.
Dad: Say something nice to your cousin Shirley
Dietrich: For a fat girl you sure don't sweat much.
Cue sound of Head slap.
RIP Muggsy & TMan
"If you are a warrior legally authorized to carry a weapon and you step outside without that weapon, then you become a sheep, pretending that JOCKO will not come today."