My question is pretty straightforward. The Magus ability spellstrike reads:
To use this ability, the magus must have one hand free (even if the spell being cast does not have somatic components), while wielding a light or one-handed melee weapon in the other hand. As a full-round action, he can make all of his attacks with his melee weapon at a –2 penalty and can also cast any spell from the magus spell list with a casting time of 1 standard action (any attack roll made as part of this spell also takes this penalty).
Can the magus use spell combat with a Halfling Sling Staff (which is a melee weapon) to make ranged attacks? Similarly if the magus is wielding a dagger can they throw it as part of spell combat?
Note: I am aware of the existence of ranged magus archtypes.