Then again, this could very well be a percentages thing where you will never have 100% safety. The incident with Brandon Lee in "The Crow" happened in 1993 and I cannot think of another Hollywood film where a death resulted from a firearm between that and "Rust". How many films have been made in those 28 years? At least a couple thousand.

“Whoever fights monsters should see to it that in the process he does not become a monster. And if you gaze long enough into an abyss, the abyss will gaze back into you.”