OK, here's a brief overview summary of above MWO Wiki link:
Since the
placement of the ammunition in your mech is also important, here are more tidbits:
MWO Ammo Usage Order:
http://wiki.mwomercs...p?title=Weapons
http://mwomercs.com/...rsoarmslegshead
1. Center Torso
2. Right Torso
3. Left Torso
4. Left Arm
5. Right Arm
6. Left Leg
7. Right Leg
8. Head
Ammunition in the center torso is always used first, ammunition in the head is always used last. There is a danger of unused ammunition exploding when damaged in combat, see below Internal Explosions for details.
- - - - - -
Internal Explosions:
http://wiki.mwomercs...rnal_Explosions
Gauss ammunition does not explode when crit.
AMS ammunition does ot explode anymore.
An ammunition bin has a 10% chance to explode when destroyed, dealing damage as a single hit to its location. The damage depends on the amount of ammunition remaining in the bin. The ammunition within a destroyed bin is lost, whether or not it explodes.
IS gauss rifles have a 90% chance to explode when destroyed and Clan gauss rifles have a 100% chance to explode when destroyed - dealing damage as a single hit to its location. The amount of damage an explosion deals depends on the type of gauss rifle.