Reloading isn't really that big of a deal, so the appeal of the White Nail perk is the ammo mitigation. Without it, Black Hammer loses a lot of its appeal. There will be plenty of sub-raid level snipers that will excel beyond it now. If Bungie wanted us to have to give thought to which boss killer we should use, perhaps they should have put sniper rifles in the heavy slot where they belong. Ultimately, the nerf will only anger players. Most of us have plenty of special ammo cakes to eat, and by the time we run through a full supply of Black Hammer and then a good heavy weapon, the boss will likely be dead anyway. All this nerf does is make the skilled players swap to their heavy weapon. This is a poorly conceived change and only addresses a symptom instead of the cause.