Clearing a jam

[Lothar Hex]

It says in the rules that clearing a jammed storm bolter on Overwatch requires 1 AP. In overwatch it states that you may perform one shooting action everytime a genestealer moves or perofrms an action within your LOS.

Is clearing a jammed SB a shooting action?

If it is, then you can obviously clear the jam while the genestealer moves one space closer. If it isn't, then you need to save Command Points from the Space Marine turn to clear it, otherwise the stealer will waltz down the corrider and climb right into your lap without you being able to do anything about it.

Soooooo???

[Stomm]

You need to save the command points...

Once you clear the jam you get overwatch back though, so if the GS makes another move you get to shoot at it.

Jets take the example of the SM sitting at the end of a nice five square long corriror and it being the only way that the GS's can get to him.

On his first overwatch shot he happens to roll a double (and not a double 6) and the storm bolter jams, oh dear... The GS then moves to the 2nd square, and luckily the SM player has a command point spare, so uses it in reaction to the GS move to clear the jam, so the overwatch counter gets flicked back over. The GS then moves into the 3rd square, the SM fires on overwatch, and guess what, rolls another jam! But lucky for him, there is another spare command point, so when the GS moves into the 4th square he clears that jam and goes back onto overwatch. Then the GS moves into square five, gets shot at, the SM player finally rolls that 6 and the SM gets covered in icky bits of GS as it explodes in his face...

[M.T.]

Note also that at the end of Genestealers' phase all Jam/Overwatch markers are removed. So at the start of Marines' phase Marines aren't in overwatch and all jams are cleared.