The 44th lowest and 58% below the national average? What are the six states that have a higher gun death rate than California and how bad is the murder rate in those states that the push the average so high that the 7th highest state is 58% below the national average? The article is bullshit enough already pushing the 41,000 gun deaths a year number, 2/3 to 3/4 of them being suicides, which a standard capacity magazine ban would have no effect on.
The "44th lowest" is bad editing. One source puts California 44th ranked highest to lowest -- the CDC ranks it 43rd on the same scale. Suicides make up a majority of those deaths, but the percentage isn't quite 67%, let alone 75%.
Magazine bans, like assault weapon bans, are a political "we must do something" response to "national newsworthy" shootings. Shootings like yesterday's in Columbia South Carolina (3 dead, 1 wounded) barely qualify.