Double Crossbow + Explosive Missile

[Sodapop]

If you were to use a Double Crossbow with the Explosive Missile alchemist discovery, could you shoot both bolts at once? You would have to load one bolt separately, but when you make the attack from the Explosive Missile standard action can you fire both? I'm not saying to fire 2 bombs, but to fire a regular bolt alongside an explosive one.

The actions would be to load one bolt as a move action, then use your standard for Explosive Missile to load a infused bolt and fire it. If you have to move then you can still fire a single infused bolt.

Explosive Missile:

Benefit: As a standard action, the alchemist can infuse a single arrow, crossbow bolt, or one-handed firearm bullet with the power of his bomb, load the ammunition, and shoot the ranged weapon. He must be proficient with the weapon in order to accomplish this. When the infused ammunition hits its target, it deals damage normally and detonates as if the alchemist had thrown the bomb at the target. If the explosive missile misses, it does not detonate.

Double Crossbow:

Benefit: Make one attack roll. If the attack hits, the target takes damage from both bolts. Critical hits, sneak attack damage, and other precision-based damage only apply to the first bolt.

Drawback: Due to its size and weight, you take a –4 penalty on your attack roll if you’re proficient with it, or –8 if you’re not.

Load: Loading one bolt is a standard action; the Rapid Reload feat reduces this to a move action. Crossbow Mastery allows you to reload both bolts as a single move action.

[L. A. Paladin]

This would probably fall in the "up to your GM" category, but the fact that Explosive Missile is letting you do all of this as a standard action, and requires the firing of the bullet/arrow/bolt at the end of said standard action, seems to me to suggest you gotta do just this alone.