Normally I could just verify this with reverse engineering, but we have no good stats out there, sooo....
Do Advanced Aerospace Craft (JS/WS/SS) use ammunition in BV calculations? The whole arc thing on p161 is fine, but there is no mention of ammo, and 10 NAC shots are typically more BV than the weapon itself. If I had to guess, I think I'd say ammo for adv aero's follow the rules on P312 of the TM, where it says the BV for ammo can't be over the BV for the weapon.
Thanks!