As a bear-stalker master (i know there are a few of us that endured it out there), I found the nerf to be absolutely devastating. It was already a "weak" weapon compared to some other weapons out there. I found it more situational than a main weapon. Nerfing the damage did nothing. If they wanted to nerf the damage, at least reduce the amount of time it takes for a full charge shot yknow?
The 500 kills doesn't sound difficult. I just didn't want to endure it after hearing about the nerf.