I have some Black Talon left over from those days
The issue was two fold, the NAACP and other such organizations claimed that by calling the product Black Talon, Winchester was telling people that it was for shooting black people. This is kind of like the lawsuit against the FBI claiming that by using black B27 targets the Bureau was training the agents to shoot black people.
The second issue is the wicked look of an expanded Black Talon projectile.
Image courtesy of Crafted Ballistics
After the ammunition was used in a shooting or two, several Doctors (not from those cases) hit the Television Media outlets calling the projectile a FLYING BUZZ SAW
These two issues caused increasing tension for Winchester and they announced the voluntary withdrawal of Black Talon from the market.
The Cop Killer moniker was not a consequential factor in the Black Talon Saga
Shortly after all this drama started, Winchester introduced the SXT (Supreme eXpansion Talon) ammunition to the Public. This was the same projectile in the same nickel plated case in amazing similar black boxes with the only difference being that the projectile was now coated in gold instead of black. Winchester eventually changed the word Talon to Technology when advertising or discussing the projectile. This solved the last of the Public Relations crisis
Before Winchester released SXT, the Ranger line for Law Enforcement appeared. This was the same old black projectile loaded into brass cases. This may have just been a way to use up all of the projectiles that were already black since today's Ranger SXT uses the gold colored projectile.
A round that I really liked, the 357 Magnum Black Talon loading was lost in the transition. It was a 180 grain projectile that ran right at 1100 FPS from a 4" revolver and hit more than 1525 FPS from a 16" (18" ?) lever action, I can't recall which lever I chronographed it from. This projectile was never moved to a different line of ammunition