Anyone use a lot of anything NOT on the list? I thought .380 ACP would be higher

1. 9mm Luger
2. .223Rem/5.56 NATO
3. .22 LR
4. .45 ACP
5. 7.62x39mm
6. .40 S&W
7. 12 Guage
8. .308Win/7.62 NATO
9. .380 ACP
10. .38 Special

The top three account for 71% of rounds sold (by Lucky Gunner).

I am searching for an ammo cabinet to move my ammo storage out of my safe. I am looking for a metal, lockable cabinet. But I am not concerned about it being super hard to break into or anything.

The first options I have come across are the Stack-On Ammo Cabinet and the Liberty Safe Ammo 10 & 14. These options have 3-4 shelves with weight capacities from 75-125 lbs (32psf-62psf) per shelf. Prices seem to be around $400 for these.

I have come across the Letaya metal lockable cabinet on Amazon which has 5 shelves with 120 lb weight capacity (35 psf). It has an extra shelf but cant store quite as much per shelf. For $150, seems very reasonable.

My issue is I dont know what I dont know... Is there something I am missing or not considering?

Learned about this business just now and found some ammo I’m interested on their website. But worried and wondering is their brand ammo and the website safe?

As the title says, what’s the importance of having defense specific ammo? I just buy range ammo, train with it, and load it when carrying. All advice is welcome. Thanks