whats the best ammo for the moffet?
The Mk 32 or 46 common shell - 32 has 250g more HE, 46 has significantly better pen might be useful vs the various low BR cruisers.
Also have some VT shells for when needed - although note your 5" are not high angle so can’t get aircraft that are close to overhead.
So my load is (IIRC) 180 HE-VT, the rest Mk 46… although having just noted that the 32 has more HE I think I’ll try that for a bit :)
ETA: I actually use Mk 32 - obviously I’ve favoured HE over penetration :)