I'm an RO and a 3 gun RO .The RO has to check the fire arm to make sure it is on safe or clear.
Sorry for what sounds like a bad call.But in the future if an RO tells you i think you did some thing wrong,i would call for an arbitration in a second.
If he gets up in front of the board and says i think ,well that would not go in his favor . No such thing as i think he did this, it is he did this.
No middle ground.