Don,
I'm snowed under here myself so I don't know how involved I can get here but, for others try this website as a good start point.
Note the table in the upper third part normally will show all weapons and below ammo load out. Sorry best that I can do for now.
http://military-today.com/
http://www.military-today.com/apc/btr_90.htm,
http://www.military-today.com/apc/stryker.htm and
http://www.military-today.com/apc/m2_bradley.htm for example purposes you'll have peck through them not all show ammo load out unfortunately.
Regards,
Pat