Alchemist help

[Twisteminds]

I am trying to make an alchemist based on Explosive Missile. Long range bombs with a Composite Longbow. Is it possible to shoot multiple bombs if you have the Fast Bomb discovery as well?
Any other suggestions for discoveries or feats?

[LoneKnave]

Grenadier archetype, gives you longbow proficiency and the ability to infuse weapons with alchemical stuff, and a channel weapon lets you stack yet another bomb on hit for expending 2 bombs.

[Twisteminds]

Thinking of the Crypt Breaker actually. Going tomb hunting. And we will be 14th level as well

[LoneKnave]

Sadly, those are not compatible.

I find crypt breaker to be pretty bad though, unles there's really noone else to handle the traps.

[VRMH]

Wouldn't a bow in an environment of subterranean tunnels be a bit... impractical?