I had this great idea of a shotgun sniper, But hear me out before you flame
It fires one bullet, and the bullet does 25 dmg.
But when it gets near a player, it explodes into a blast of shells, each doing 10 dmg each. However, the shells spread, so only some will hit the target, like 3 or 4.
There should also be a 3 or 2 second delay when fired, so that way, if your right up to a blockhead, you'll only deal 25 dmg.
Discuss
:EDIT: look at page 11 for a diagram.