KTW represented the names of the three guys who started the company, Kopsch, Turcos, and Ward. And they were in Ohio. One or all of them usually had a table at the OGCA shows during the late 1960s-early 1970s to display their products. They had sample rounds and I have a couple of them.....somewhere. One impressive item they had on display was a steel plate about a half-inch thick with a hole through it, the result of loading one of their .38 bullets in a .35 Remington cartridge and fired in a rifle. The Teflon coating did essentially nothing and was later dropped. The first bullets were made of a tungsten alloy called Kennertium, and was the same material used to make snow tire studs. Are snow tires with studs still around? Later bullets were brass. I had understood that duPont eventually refused to sell them any Teflon due to the bad publicity for the product. True or not I don't know.