Gun control advocates have a lot of targets in their sights, from high capacity magazines to semi-automatic rifles of this or that description. About all we can do is to continue to educate those less well versed in firearms than ourselves. If we fail in this endeavor, it will only be a matter of time before we are overwhelmed at the polls and in the courts.
It may be a shock, but non gun control people like myself think magazine limits are not a bad thing.
In my work we have layers of safety. No single aspect. If one does not stop the issue, if all work, the next one does.
If you want to review a history of how not to do it, the Maconda Oil Well blowout is brilliant (the Judge who handled the case was truly amazing and astute)
First they drilled to close to the reservoir.
Next they did not put the required number of centering devices on the pipe.
They also did not test the so called cement (liquid non seeing mix that holds down the pressure), said cement was wrong mix.
Then they used a repaired but not tested blow off preventer.
The blow off preventer had never been tested to work at the depths used.
They then took the hold down cement out of the well despite the classic indoors that pressure was building in it.
A low capacity magazine would help in many ways.
It would require a magazine change. That is both an opportunity to get the assailant and its a chance for the non trained to fumble it.
Someone trying to get high cap magazines (which would not be there if we had done this 30 years ago) might set off alarm bells and be reported.
Requiring a local background check for an AR purchase would do the same.
Raising the age limit for semi automatics would do the same.
I don't claim all the answers, but ways to lower the risk is needed.
It has to be proven which means research actively resourced instead of actively faulted.
In the end, my guess is about 5% of the gun owners are livid never do anything.
That puts the issue at 95% against.
An avalanche starts with one stone.
I would rather work towards solutions that be buried by the Avalanche.