Copyright International Ammunition Association, 2006. All rights reserved.
Cartridge of the Month December 2006

9mm Parabellum KTW
Specimen and photos courtesy of Paul Smith

In the 1960's Dr. Paul Kopsch (an Ohio coroner), Daniel Turcos (a police sergeant) and Donald Ward (Dr. Kopsch's special investigator), began experimenting with special purpose handgun ammunition. Their objective was to develop a law enforcement round capable of improved penetration against hard targets, such as windshield glass and automobile doors. Conventional bullets, made primarily from lead, often become deformed and ineffective after striking hard targets, especially when fired at handgun velocities.

After some experimentation with steel rounds, the officers settled on a brass core with a 'lubricating' jacket of Teflon. Although a myth persists that the Teflon is there to either penetrate "bullet-proof" vests more effectively, or protect the bore of the firearm that fires it, Dr. Kopsch himself has testified that the Teflon actually reduces these bullets' penetration in Kevlar, and is only there to reduce the likelihood of ricochets. (Kopsch, Turcus, & Ward struck upon the idea of the Teflon coating after finding out that the manufacturers of canes impregnate the plastic tips of their canes with a Teflon compound; under pressure, the Teflon actually helps the bullet to "stick" momentarily, and it is this characteristic that reduces the chances of a ricochet off of the glass or metal surfaces of an automobile). The inventors named the round the 'KTW Bullet,' after their initials.(1)






  This round was headstamped: KTW 9MM LUGER


Note the 2 driving bands on the brass projectile.


Lew Curtis, and advanced collector of 9mm ammunition notes:(2)

I was in Ohio when they put on their first display at the Ohio Gun Collectors show in Columbus and I spoke to one of them who was at their table. They had just started production and their big pitch at the time is that their 357 magnum shot at the back of a fleeing car would penetrate the entire car and crack the engine block stopping the car. They had photos of cars they had shot. I was a 1st Lt at the time and was impressed. I left Ohio and went back to SEA in early 1969 so this must have been 1968 they introduced the KTW ammo and began selling it because I bought a box. The cases were all reloads. In the 1970s they introduced their own headstamp. The initial production was all a steel alloy (weakly magnetic) and the name was something like Kennetite or similar I think. It was significantly later, 1981 in one source (, that the brass bullet was introduced. I think this must have been in the same time frame they left Lorain Ohio and became: NORTH AMERICAN ORDNANCE CORPORATION, Pontiac, Mighigan 48057, U.S.A.

[It is important to note...] that both a magnetic alloy bullet and later a brass bullet were produced and sold.

NOTE: Serious restrictions were placed on this ammunition by Congress after a hysterical campaign by gun control extremists branding these as "cop killer bullets".





(2) email from Lew Curtis to webmaster November 26, 2006.

Copyright 2006 by the International Ammunition Association, Inc. All rights reserved.

[Close this page to return to the IAA Cartridge of the Month Index]

Return to IAA main page

  Revised 30 November 2006