I have adequate stores of all calibers and ample stock of some. If I were younger I might not say so.
I would like to have a few more boxes of 8mm Mauser that is not corrosive. Might could use a few more boxes of .380 but I shoot it so seldom that it doesn’t matter that much.
I am particularly well off in .22LR, 9mm and .177 pellets.
You shouldn’t have any problem getting .380. Walmart gets it weekly, and it usually lasts beyond the initial rush.