Eleanor Roosevelt, gun owner

[jimmy the one]

28. pistol production increased to 80% in 1993

straw man: You seem to have forgotten what you were trying to disprove: that semi-auto pistols were common among civilians in the pre-war and immediate postwar years. Not as popular as revolvers, of course, but far more popular than you contend.

Actually that was incidental to what I was 'trying to prove', that being that semi-auto handgun production increased dramatically from the early 60s' thru the early 90's, and contributed to the concomitant rise in violent crime rates.
Reviewing population stats & approx. gunstock totals:

...... population ........... nat gunstock ..... nat handgunstock
1960 .. 189,323,175 .. ~'64, 75 mill .......... ('64) ~25 mill
1970 .. 213,302,031 .. ~'76, 150 mill ........ ('76) ~50 mill
1990 .. 258,709,873 .. ~225 mill ..................... ~75 mill

Assuming the proportion of long guns to handguns remained fairly constant at 2 to 1, by the early 1960's there were only ~25 million handguns, largely revolvers, of that perhaps 15 - 20 million revolvers, and maybe 5 - 10 million pistols (not all semi-auto).
By the early 90's there were ~75 million handguns, about half revolvers/half pistols (due existing revolver stock), a guesstimated increase of ~30 million pistols over what existed in the early 60's (with a large margin of error, 35% on the high side).
THAT is what I was 'trying to prove', that the dramatic increase in semi-auto handguns from the early 60's to the early 90's was a contributing factor in the dramatic rise in violent crime rates during that very same time frame.

During the two decades from 1973 to 1993, the types of handguns most frequently produced have changed. Most new handguns are pistols rather than revolvers. Pistol production grew from 28% of the handguns produced in 1973 to 80% in 1993.
The number of large caliber pistols produced annually increased substantially after 1986. Until the mid-1980's, most pistols produced were .22 and .25 caliber models.
Production of .380 caliber and 9 millimeter pistols began to increase substantially in 1987, so that by 1993 they became the most frequently produced pistols. http://www.bjs.gov/content/pub/pdf/GUIC.PDF

Tack on the production increase in larger caliber size of those semi-auto pistols.

homicide rate doubled from the early 1960s to the late 1970s, increasing from 4.6 per 100,000 U.S. residents in 1962 to 9.7 per 100,000 by 1979.. http://www.bjs.gov/content/pub/pdf/htus8008.pdf