Unenforceable laws are optional for me.

I own 5 hand guns and an AR15 rifle. All of them are registered except one that I bought from an individual. Alabama does not police private gun sales. That's probably not a good idea. I don't object to #1.

#2 sounds too costly to implement for the good it would do. The kind of gun violence we are talking about is not usually going to require ballistic testing. If I am wrong about this, go for it.

#3 is as unenforceable as prohibition imo. If I want a military style gun, I'll have one and the law be damned. The same goes for anyone else that wants one.

#4 is already in place for guns sold by dealers and difficult to enforce for private sales.

#5 a cumbersome and difficult to enforce proposal that would have zero effect on gun violence.

Who is going to apply these laws uniformly throughout the country? The FBI, the Gestapo? Not possible imo.

Your last paragraph should have said, no regulation or law can deter a citizen determined to break it.

In the area I live in, #5 would be unpopular, laxly enforced and universally ignored. The others would also get a lukewarm reception by gun dealers and law enforcement. I think it would take a new federal agency to enforce the laws in the way that you have in mind.

I am all for any laws that help weed out fruitcakes like Rodger, who killed using legally obtained pistols after killing his three roommates with a knife.

He was diagnosed with Asperger and had been interviewed by the cops a few days before the killings.

I believe that Asperger should be sufficient to prevent routine gun ownership and the cops should have confiscated any guns registered to him based on the utube posts.

We can do better at preventing these incidents but honestly, I don't believe your suggestions would do much good.