I remember the introduction and they were not sold as hunting bullets but a target bullet.
From the Nosler website:
Then, in the early 80's, Nosler® set out to design a bullet that would combine the accuracy of a match bullet, the reliable expansion and penetration of the Solid Base®, and the ability to resist recoil-induced deformation in the magazine. The result was the Nosler® Ballistic Tip®. This hyper accurate bullet with the colorful, color-coded polymer tip quickly gained favor with deer, sheep, caribou and antelope hunters.
