it means that you must have youe weapon in tip top shape.Shot matches in the SE since 75, dozens of western Rendezvouses, couple Mid-America's couple Colorado State Shoots (Camp Hale many years ago) and have never seen or even heard of the "hammer drop" rule. Not condemning or agreeing with it, just curious as to how it's "fair for all shooters"? To recap or reprime the pan, muzzle is ( or needs to be) pointing "down range" anyhow just curious.