[RPM] Improving Bullets with Magic

[CarrionPeacock]

I'm trying to make sense out of RPM and I need some help.
Lesser Strengthen Energy says it can impart enough energy to a moving object to double its effect, so can this effect double the damage done by bullets (overpenetration not withstanding)?
If so, how would an actual spell look like? Can I cast it on a gun so it speeds up every bullet it spews or would I have to make ammunition charms? Because it's enhancing the damage already done by the bullet, am I right to think I should use the Internal Damage table instead of External?
How would I go about to improve the chance of hitting with said bullet? My guess is that Lesser Control Energy would allow to bestow bonus to hit, while Great Control Energy would allow turning it into a "homing" attack. Is it right? If so, how do I do the latter?
Finally, what sort of spell would allow me to keep shooting the gun after running out of ammo? Greater Create Matter to make an ammo (or a full magazine)?