I'm not sure I follow your reasoning. Traditional training tells us if the action is closed, then the gun is assumed to be loaded. IMHO, you can't be safer than that.AK130K said:I like snap caps for IAD's on the range, and for safety reasons while dry firing.
By using them, they force you to verify the gun is clear before you start, and you cant have a live round and a snap cap in the chamber at the same time, no matter how hard you try.
On any modern pistol of revolver, snap caps are a waste of time and money. Modern guns are designed to be dry fired endlessly with no damage.