Joined: Fri Dec 02, 2011 11:08 am Posts: 1105 Location: Missouri (Misery?)
Page 21, 6th ed. Rulebook:
"An Overwatch attack is resolved a normal shooting attack ... and uses all the normal rules for range, line of sight, cover saves and so on." So, if they are within 12 inches, they would get both shots for Overwatch. Since they are trying to assault, they have to be within 12 inches to declare the charge. This can affect some weapons that have shorter ranges, like Melta pistols or Hot-Shot weapons. The exception is Flamer weapons, who get the D3 hits automatically, regardless of the distance.
Also, Overwatch "cannot cause Morale checks of Pinning tests" for what it's worth.
I hope that helps!
_________________ My Wargaming Collections Space Wolves and Space Marines Lizardmen Astra Militarum Khador
Joined: Fri Aug 31, 2012 5:30 am Posts: 3122 Location: Europe
Ribbons Earned: None, nobody likes me.
They still only hit on a six, so you are doubling you poor chance to hit. Though, take everything you can get!
10 shots vs 20 shots makes on avg 1 hit turn into 3 by magic. If you will get one if this 3 hits as plasma you just removed one enemy That is really good result because 1 marine is worth more than 30% of IS.