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I am going to have to disagree with this statement. If a shooter wants to pack "lite" to the range, that is perfectly acceptable. I have often gone to the range with nothing more than a pistol and a box of ammo in a small bag. No catcher, no deflector.
It is not a range requirement. Therefore no person should be "faulted" for ejecting brass on the next person.
I could list all kinds of examples, but what you basically stated is, as long as the range, state, city, or county doesn't make a rule about something, it's okay to do, and the person should not be criticized?
I guess common sense, common courtesy, and other societal behaviors have to be regulated by some authority before I'm allowed to fault someone for being too self-centered to care about, or learn, established rules of etiquette regardless of setting?
And to think I've been holding doors open for people and treating people with courtesies like "please" and "thank you" everywhere I go my whole life even though no legal authority mandated it!
What a fool I am!!
I agree that ejecting brass is just part of the experience. What I do not agree with is the notion that there has to be a rule for everything that every shooter should try to incorporate so everyone has an enjoyable time at the range.
Many ranges (private, mostly) install dividers between shooters to, among other things, deflect ejected brass from your neighbors. Maybe we should do a "self-help" project and either help install permanent ones, or at least a net and collection trough between stations.
It's silly to make every one of 10 shooters at the same station over the course of a day provide their own brass catcher.