I never got the hang of the sniper rifle, but I CLEAN UP with the Huntsman.
Those of you who still have difficulty aiming, treat it like a rocket or flare. Leading shots is essential, even when the enemy gets close.
That said, my sniper kill count skyrocketed with this thing. My favorite activity is nailing a charging pyro with a fully charged arrow, then killing him with the kukri in a single swipe just as he gets in range. Sure, I'm on fire, but I sure aint dead.
Favorite activity #2 is flanking sniper nests and putting a quick arrow in every scrub sniper that is still peering down his scope. Bonus points if they're pinned to the wall in largely the same area, like a collection of macabre wall hangings.